
Professor Olivier Buzzi
Professor
School of Engineering (Civil Engineering)
- Email:olivier.buzzi@newcastle.edu.au
- Phone:(02) 4921 5454
Geotech Expert Tackles Soil Behaviour
Professor Olivier Buzzi's research interests are in rock mechanics, rock joints, expansive soils and unsaturated soil mechanics.
Olivier was a Chief Investigator with the ARC Centre of Excellence for Geotechnical Science Engineering (CGSE), and has received several large research grants to investigate areas including strategies to extinguish underground coal fires and to extract geothermal energy; microstructure-based computational homogenisation of geomaterials; and barriers for cost-effective rock fall hazard mitigation.
Olivier graduated from the Ecole Normale Superieure de Cachan, one of the most prestigious and competitive public institutions of higher education and research in France. After ranking second nationally at the French National Agrégation of Civil Engineering in 2000, he successfully completed a Master on rock joints (in 2001) and PhD on the hydromechanical behaviour of contacts between geomaterials in the context of nuclear waste storage (completed in 2004).
Moving to Australia from his home in France in 2005 to take up the position of a post-doctoral researcher was the first step in Dr Olivier Buzzi's career at the University of Newcastle. He began lecturing at the University in 2007, became a senior lecturer in 2009, an Associate Professor in 2012, and has since cemented his position with the CGSE.
Olivier often complements his experimental research by numerical investigations in order to deepen the understanding of the phenomena under study. Recently, he has focused his attention on the development of sensors and sophisticated experimental methods, which allow investigations on fundamental aspects of soil behaviour. One recent publication presents a new coating used to track how much irregular lumps of soils shrink as they dry. This product has the potential to solve many headaches for practitioners, as soil shrinkage behaviour often needs to be determined for soil characterization.
Another of Olivier's co-authored 2014 papers describes the results of a study into the performance of high-strength rock fall meshes, particularly focusing on the effect of the size of the block, often referred to as the "bullet effect". The results indicated that as blocks decrease in size, so does the energy required to perforate the mesh.
Olivier is an Editorial Board member Computers and Geotechnics and Rock Mechanics and Rock Engineering, two highly recognised journals of his field.
Geotech Expert Tackles Soil Behaviour
A/Prof Olivier Buzzi's research interests are in rock mechanics, rock joints, expansive soils and unsaturated soil mechanics.
Career Summary
Biography
- Ecole Normale Supérieure (ENS) de Cachan from 1997 to 2000
- Agrégation Génie Civil in 2000 (ranked 2nd nationally)
- Master Research on Rock Joints, Laboratoire 3S-R, University Joseph Fourier, 2001
- PhD, Laboratoire 3S-R, University Joseph Fourier, 2001-2004
- Joined Newcastle in 2005 for a Post Doctoral position to work on foundation remediation using expanding polyurethane resin
- Became Lecturer in 2007, Senior Lecturer in 2009, Associate Professor in 2012 and Professor in 2018.
Research Expertise
Mine Geotechnics, Experimental rock mechanics, Rock Joints, Rockfall characterization and protection, Advanced Experimental Unsaturated Soil Mechanics, Expansive soils, Soil microstructure.Teaching Expertise
I am currently teaching CIVL2282 Introduction to Geomechanics (2nd year course) and CIVL4571 Geotechnical Engineering Design (4th year course).
In the past, I have taught CIVL2720 Transportation Engineering and Design (2nd year course), Technical Drawing, Solid mechanics, Materials and Construction planning.
Administrative Expertise
I am the former Head of the Civil, Surveying and Environmental Engineering Discipline
Collaborations
See list of publications.
Awards
- 2022: Chandrakant Desai Research Excellence Medal, International Association for Computer Methods and Advances in Geomechanics (IACMAG)
- 2019: Nominated by undergraduate students for a Faculty Award for Teaching Excellence
- 2019: NIER Research Award for Best Practice Industry Engagement
- 2016: Vice Chancellor’s Award for Research Supervisor of the Year
- 2016: Faculty Pro Vice Chancellor’s Award for Research Supervision Excellence
- 2014: Excellent Regional Contribution Award - International Association for Computer Methods and Advances in Geomechanics (IACMAG) (Asia Pacific region)
- 2013: Mendes and Buzzi (2013) Editor’s choice of the Canadian Geotechnical Journal.
- 2012: Best conference paper at the 7th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control
- 2011Pro Vice Chancellor’s Award for Research Excellence
- 2011: Outstanding Young Investigator Award, International Association for Computer Methods and Advances in Geomechanics (IACMAG) (Asia Pacific region)
Qualifications
- PhD (Civil Engineering), Universite Grenoble1-Universite Joseph Fourier
Keywords
- Advanced Experimental Unsaturated Soil Mechanics
- Expansive soils
- Experimental Rock Mechanics
- Geotechnical Engineering Design
- Mining Geotechnics
- Rockfall characterization and protection
- Shear strength of rock joints
- Soil microstructure
Languages
- French (Fluent)
- Italian (Fluent)
- English (Fluent)
Fields of Research
Code | Description | Percentage |
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401902 | Geomechanics and resources geotechnical engineering | 30 |
400502 | Civil geotechnical engineering | 70 |
Professional Experience
UON Appointment
Title | Organisation / Department |
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Professor | University of Newcastle School of Engineering Australia |
Academic appointment
Dates | Title | Organisation / Department |
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1/1/2013 - 1/8/2022 | Editorial Board | Rock Mechanics and Rock Engineering Australia |
1/1/2011 - | Editorial Board | Computers and Geotechnics Australia |
1/10/2007 - | Lecturer | University of Newcastle School of Engineering Australia |
1/10/2005 - 1/10/2007 | Research Fellow | University of Newcastle Engineering & Built Environment Australia |
1/9/2004 - 1/8/2005 | ATER | University Joseph Fourier, Grenoble UFR DE MECANIQUE France |
Membership
Dates | Title | Organisation / Department |
---|---|---|
4/8/2022 - | Associate Editor | Rock Mechanics and Rock Engineering Australia |
Publications
For publications that are currently unpublished or in-press, details are shown in italics.
Book (3 outputs)
Year | Citation | Altmetrics | Link |
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2010 | Buzzi O, Fityus S, Sheng D, Preface (2010) | ||
2010 | Buzzi OP, Fityus SG, Sheng D, Unsaturated Soils: Experimental testing in unsaturated soils and expansive soils., CRC Press, Great Britain, 493 (2010) [E4] | ||
2010 | Buzzi O, Fityus S, Sheng D, Preface (2010) |
Journal article (75 outputs)
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2023 |
Guccione DE, Giacomini A, Thoeni K, Fityus S, Buzzi O, 'On the Dynamic Fragmentation of Rock-Like Spheres: Insights into Fragment Distribution and Energy Partition', ROCK MECHANICS AND ROCK ENGINEERING, 56 847-873 (2023) [C1]
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2023 |
Bertolini I, Gottardi G, Gragnano CG, Buzzi O, 'Calibration of the root water uptake spatial distribution of a young Melaleuca styphelioides, an Australian-native plant, by means of a large-scale apparatus experiment', BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 82 (2023) [C1]
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2023 |
Buzzi O, Guccione DE, 'An Analytical Model to Predict the Survival Probability of Irregular Brittle Rocks in Rockfall under collinear impact', Rock Mechanics and Rock Engineering, 56 4659-4665 (2023) [C1] The experimental survival probability of one irregular shaped rock was established via 105 drop tests using mortar replicas.The derivation and validation of an analytical model to... [more] The experimental survival probability of one irregular shaped rock was established via 105 drop tests using mortar replicas.The derivation and validation of an analytical model to predict the survival probability of brittle rocks of irregular shape upon collinear¿impact is presented.The survival probability predicted by the model was found to fall withing 5% of the experimental data with an excellent goodness of fit coefficient (R2 ~ 93%).
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2023 |
Danxi S, Xian-feng L, Sheng-yang Y, Gaofeng P, Guanlu J, Hailong W, et al., 'Three-dimensional characterization of cracks in undisturbed Mile expansive soil using X-ray computed tomography', Soils and Foundations, 63 (2023) [C1] The distribution of cracks strongly affects the hydro-mechanical behavior and strength of soil. In order to characterize the distribution of cracks in undisturbed expansive soil, ... [more] The distribution of cracks strongly affects the hydro-mechanical behavior and strength of soil. In order to characterize the distribution of cracks in undisturbed expansive soil, X-ray computed tomography (X-ray CT) tests were carried out for one type of undisturbed expansive soil from Mile City, China. Seven undisturbed specimens retrieved from depths between 1 and 4.7 m were used to study the evolution of cracks along the drying path. The characteristics of the cracks were quantitatively studied by 3D parameters extracted from CT images by commercial software. The test results suggested that, with an increase in suction, the total volume of the cracks gradually increased, and one large crack formed due to the merging of sub-cracks before the shrinkage limit. When the suction was larger than the suction corresponding to the shrinkage limit, degradation of the cracks caused by the collapse of the soil structure was observed. Meanwhile, due to the development of sub-cracks, the crack anisotropy caused by the typically oriented primary cracks decreased along the drying path. Finally, a conceptual model of crack development for undisturbed Mile clay was proposed based on the evolution of crack volume, number, shape, and orientation.
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2023 |
Jeffery M, Huang J, Fityus S, Giacomini A, Buzzi O, 'A Large-Scale Application of the Stochastic Approach for Estimating the Shear Strength of Natural Rock Discontinuities', Rock Mechanics and Rock Engineering, 56 6061-6078 (2023) [C1] Reliable shear strength determination of large in situ discontinuities is still a challenge faced by the rock mechanics field. This is principally due to the limited availability ... [more] Reliable shear strength determination of large in situ discontinuities is still a challenge faced by the rock mechanics field. This is principally due to the limited availability of surface roughness and morphology information of in situ discontinuities and the unresolved management of the ¿scale effect¿ phenomenon. Recently, a stochastic approach for predicting the shear strength of large-scale discontinuities was established, encompassing random field theory, a semi-analytical shear strength model, and a stochastic analysis framework. A key aspect of the new approach is the application at field scale, thereby minimising or bypassing the scale effect. The approach has been validated at laboratory scale and an initial large-scale deterministic-based validation showed promising results. However, to date, no large-scale experimental-based validation has been undertaken. This paper presents the first rigorous application of the employed semi-analytical shear strength model and the stochastic approach on a 2¿m-by-2¿m discontinuity surface, with comparison of prediction to experimental shear strength data. The shear strength model was found to generally produce peak and residual predictions within a ± 10% relative error range, with good agreement between predicted and observed damage areas. It was observed that, applying the stochastic approach to seed traces with gradient statistics equivalent to that of the surface, produced predictions that closely resemble the experimental results. Whereas, predicting shear strength from different seed traces results in more variability of predictions, with many falling within ± 20% of the experimental data. The predictions of residual shear strength tended to be more accurate than peak shear strength.
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2022 |
Jeffery M, Crumpton M, Fityus SG, Huang J, Giacomini A, Buzzi O, 'A Shear Device with Controlled Boundary Conditions for Very Large Nonplanar Rock Discontinuities', GEOTECHNICAL TESTING JOURNAL, 45 725-752 (2022) [C1]
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2022 |
Guccione DE, Buzzi O, Thoeni K, Giacomini A, Fityus S, 'Practical considerations for the application of a survival probability model for rockfall', Australian Geomechanics Journal, 57 115-129 (2022) [C1]
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2022 |
Yuan S, Liu X, Wang Y, Delage P, Aimedieu P, Buzzi O, 'X-Ray microtomography of mercury intruded compacted clay: An insight into the geometry of macropores', Applied Clay Science, 227 (2022) [C1] Soil properties, such as wetting collapse behaviour and permeability, are strongly correlated to the soil microstructure. To date, several techniques including mercury intrusion p... [more] Soil properties, such as wetting collapse behaviour and permeability, are strongly correlated to the soil microstructure. To date, several techniques including mercury intrusion porosimetry (MIP), can be used to characterize the microstructure of soil, but all techniques have their own limitations. In this study, the features of mercury that penetrated and has been entrapped in the pore network of the specimens through MIP testing were investigated by X-Ray microtomography (X-µCT), in order to give an insight into the geometry of macropores and possible ink-bottle geometry. Two conditions of water content and density were selected for the compacted Maryland clay. The distribution and geometry features of mercury entrapped in the microstructure after MIP were characterized and pore size distributions were also reconstructed. The results suggest that, for the two conditions studied in this paper, macropores were evenly distributed within the specimens, and most of them with a non-spherical shape, and with aspect ratio (ratio between the maximum and minimum thickness along a given segment) smaller than three. Different dominant entrance pore size of macropore was obtained from MIP and X-µCT, due to the specific experimental protocol used in tests and the effect of ink-bottle geometry. Only the large pore bodies with high aspect ratio were imaged in X-µCT, due to the extrusion of mercury during the process of depressurization and subsequent sample preparation for X- µCT. But entire pore space was accessible in MIP. The difference in dominant entrance pore size was more significant for specimens with lower void ratio due to a more pronounced aspect ratio.
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2021 |
Yuan S, Liu X, Buzzi O, 'A microstructural perspective on soil collapse', Geotechnique, 71 132-140 (2021) [C1] Soil collapse is a phenomenon triggered by wetting a loaded soil, the structure of which contains large pores. This type of soil response has been studied since the 1970s and mode... [more] Soil collapse is a phenomenon triggered by wetting a loaded soil, the structure of which contains large pores. This type of soil response has been studied since the 1970s and models that can predict its occurrence and magnitude were proposed from the 1990s. In particular, the concept of loading collapse (LC) curves has been developed in the framework of unsaturated soil mechanics and it has been validated using low-reactivity soils. Several publications have highlighted that the microstructure of expansive soils evolves significantly during swelling, a phenomenon that may affect the location of the LC curve. With that perspective, some studies mention a need to shift the LC curves for experimental data and model predictions to agree. This paper brings new insight into the significance of microstructure for the collapse of a reactive soil. A series of tests was conducted to characterise the microstructure of soil specimens compacted under different initial conditions. Then, three pairs of wetting tests under constant load and under controlled suction were conducted in order to identify the zone of onset of collapse. It was found that the conventional LC curves cannot adequately predict the occurrence of collapse. In contrast, analysing the swelling response in the light of microstructural characterisation led to the conclusion that, for Maryland clay, occurrence of collapse can be tracked by the evolution of the void ratio associated to the macro porosity during wetting.
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2021 |
Vidler A, Buzzi O, Fityus S, 'A simple water retention model based on grain size distribution', Applied Sciences (Switzerland), 11 (2021) [C1]
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2021 |
Jeffery M, Huang J, Fityus S, Giacomini A, Buzzi O, 'A rigorous multiscale random field approach to generate large scale rough rock surfaces', International Journal of Rock Mechanics and Mining Sciences, 142 (2021) [C1] Estimating the shear strength of large in situ rock discontinuities is non-trivial because of the multiscale nature of roughness and the fact that only a very limited extent of di... [more] Estimating the shear strength of large in situ rock discontinuities is non-trivial because of the multiscale nature of roughness and the fact that only a very limited extent of discontinuity morphology is visible along traces. Recently, a novel stochastic method based on random field theory and Monte Carlo semi-analytical estimation of shear strength was proposed. The method was validated at laboratory scale and its application to one large natural surface showed that it has the potential to bypass the scale effect. However, a critical issue was reported by the authors of the study: it was found that the random field approach used could not generate the correct distribution of gradients on the simulated surfaces, which translates into an inaccurate prediction of shear strength. The authors had to manually adjust the input of the model to achieve a satisfactory prediction. This paper presents a new multiscale approach using random field theory, which now allows a rigorous generation of large synthetic 3D surfaces with controlled distribution of asperity heights and gradients from the profile of a 2D fracture trace (as might be visible in a rock face) referred to as a seed trace. Each seed trace is first decomposed into three daughter profiles corresponding to three levels of roughness. The statistics of each daughter profile form the input of the random field model at each scale level, allowing synthetic daughter surfaces to be created at each scale level. The synthetic daughter surfaces are then superimposed to obtain a composite rough surface comprising three levels of roughness. The approach was successfully validated with 25 input seed traces, coming from 5 different natural surfaces. This rigorous multiscale approach is essential to apply the stochastic method that was recently developed to predict the shear strength of large in situ discontinuities.
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2021 |
Guccione DE, Thoeni K, Fityus S, Nader F, Giacomini A, Buzzi O, 'An Experimental Setup to Study the Fragmentation of Rocks Upon Impact', Rock Mechanics and Rock Engineering, 54 4201-4223 (2021) [C1] Rockfall is a natural hazard that needs to be rigorously managed along all the major road and railways transport networks by identifying the most appropriate mitigation measures. ... [more] Rockfall is a natural hazard that needs to be rigorously managed along all the major road and railways transport networks by identifying the most appropriate mitigation measures. There has been significant progress in rockfall modelling and rockfall protection systems in recent years but there remains one aspect that is not very well understood and quite challenging to account for in the design of rockfall protection structures, namely the fragmentation of falling blocks upon impact. Rocks often break up upon impact, which leads to a change in size, shape and energy of falling blocks, parameters that affect the design of the protective structures. Before being able to incorporate fragmentation into predictive trajectory models, it is required to better understand the fragmentation process and its likely outcome (number, volume of fragments and their trajectories). To that aim, an innovative experimental setup was developed at the University of Newcastle (Australia) to study rock fragmentation upon impact. The setup was designed to perform controlled vertical drop tests and record the following impact parameters: impact force, impulse, impact duration, velocities (of the block before impact and its fragment after impact) and all components of energy, pre and post impact. Six views (four high-speed cameras and two mirrors) are used for an accurate reconstruction of the 3D trajectory of blocks and fragments, in translation and rotation. This paper presents the validation of the setup via two series of drop tests using mortar spheres. Attention was focused on the evaluation of impact force and impulse from load cells placed under the impacted surface, tracking of translational and rotational velocity and the computation of total kinetic energy (before and after impact) and all components of energy dissipation. The results confirm that the experimental setup and the approach developed can be used to obtain impact force, impulse and to compute the energy balance during the impact and fragmentation and conduct advanced fragmentation testing.
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2021 |
Guccione DE, Buzzi O, Thoeni K, Fityus S, Giacomini A, 'Predicting the fragmentation survival probability of brittle spheres upon impact from statistical distribution of material properties', International Journal of Rock Mechanics and Mining Sciences, 142 (2021) [C1] Fragmentation of rocks upon impact during rockfall is a phenomenon that is poorly understood, scarcely researched and difficult to predict. However, to adequately predict the outc... [more] Fragmentation of rocks upon impact during rockfall is a phenomenon that is poorly understood, scarcely researched and difficult to predict. However, to adequately predict the outcomes of rockfall events, it is essential to know whether a given block is likely to fragment given the impact conditions and what will be the outcome of the fragmentation process; that is, the number, size and trajectory of fragments. To date, there is no model or data that can be used to fully answer these questions. This paper presents the first theoretical model that can predict the fragmentation survival probability of brittle spherical blocks upon dynamic impact (i.e. drop tests) from the statistical distribution of material properties, determined from a range of standard quasi-static tests. Considering that survival probabilities tend to follow a Weibull distribution, the model focuses on predicting the two Weibull parameters, commonly known as the shape parameter (m) and the scale parameter (here, the critical kinetic energy). The model is based on theoretically-derived conversion factors used to turn the critical work required to fail disc samples in quasi-static indirect tension into the critical kinetic energy to cause failure of spheres at impact in drop tests. The mechanistic conversion factors specifically account for the shape and size of the specimens tested and the increase of strength under dynamic loading (strain rate effect). Three series of drop tests were conducted (on spheres of three different diameters) and complemented by extensive material characterisation testing in order to validate the novel predictive model. The variability of material properties was characterised, and it was found that the material strength found by the characterisation tests generally follows a Weibull form, but the survival probability distribution of the drop tests seems to be linear. The predicted conversion factors were first compared against their experimental counterparts before validating the prediction of survival probability of the spheres upon dynamic impact (in drop tests). It was found that it is possible to predict the survival probability of artificial rock of three different diameters (50 mm, 75 mm, 100 mm) and two different strengths upon impact solely from the statistical information coming from Brazilian tests and with an average relative error of less than 9%.
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2021 |
Vidler A, Buzzi O, Fityus S, 'The Significance of Hydrophobicity for the Water Retention Properties of Sand and Coal', APPLIED SCIENCES-BASEL, 11 (2021) [C1]
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2020 |
Yuan S, Liu X, Romero E, Delage P, Buzzi O, 'Discussion on the separation of macropores and micropores in a compacted expansive clay', Geotechnique Letters, 10 454-460 (2020) [C1]
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2020 |
Bertrand F, Buzzi O, Bésuelle P, Collin F, 'Hydro-mechanical modelling of multiphase flowin naturally fractured coalbed using a multiscale approach', Journal of Natural Gas Science and Engineering, 78 (2020) [C1]
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2020 |
Tahmasbi S, Giacomini A, Wendeler C, Buzzi O, 'Towards a novel and efficient method to determine the failure energy of rockfall chain-link meshes', COMPUTERS AND GEOTECHNICS, 119 (2020) [C1]
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2020 |
Ye Y, Thoeni K, Zeng Y, Buzzi O, Giacomini A, 'Numerical Investigation of the Fragmentation Process in Marble Spheres Upon Dynamic Impact', Rock Mechanics and Rock Engineering, 53 1287-1304 (2020) [C1]
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2020 |
Guccione DE, Thoeni K, Giacomini A, Buzzi O, Fityus S, 'Efficient Multi-View 3D Tracking Of Arbitrary Rock Fragments Upon Impact', ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XLIII-B2-2020 589-596 (2020) [C1]
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2019 |
Tahmasbi S, Giacomini A, Wendeler C, Buzzi O, 'On the Computational Efficiency of the Hybrid Approach in Numerical Simulation of Rockall Flexible Chain-Link Mesh', Rock Mechanics and Rock Engineering, 52 3849-3866 (2019) [C1]
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2019 |
Zhang C, Jiang G, Buzzi O, Su L, 'Full-scale model testing on the dynamic behaviour of weathered red mudstone subgrade under railway cyclic loading', Soils and Foundations, 59 296-315 (2019) [C1]
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2019 |
Yuan S, Buzzi O, Liu X, Vaunat J, 'Swelling behaviour of compacted Maryland clay under different boundary conditions', Geotechnique, 69 514-525 (2019) [C1]
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2019 |
Bertrand F, Buzzi O, Collin F, 'Cleat-scale modelling of the coal permeability evolution due to sorption-induced strain', International Journal of Coal Geology, 216 (2019) [C1]
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2019 |
Yuan S, Liu X, Buzzi O, 'Technical aspects of mercury intrusion porosimetry for clays', Environmental Geotechnics, 8 255-263 (2019) [C1] This paper presents a comprehensive and consistent investigation on three technical aspects associated with mercury intrusion porosimetry (MIP) applied to clayey soils: The effect... [more] This paper presents a comprehensive and consistent investigation on three technical aspects associated with mercury intrusion porosimetry (MIP) applied to clayey soils: The effect of intrusion rate, the effect of the freeze-drying method and the influence of sample size. Although a limited number of publications provide recommendations about the MIP technique, the aforementioned effects were largely left unaddressed. This study was performed on four different soils, having different microstructures. In order to obtain a quasi-static condition at the applied pressure, the smallest intrusion rate was suggested to be used in the MIP tests. It was found that the freezing technique does modify the pore size distribution, due to expansion of water on freezing. The more water in the soil specimen, the more pronounced the effect. The specimen size also matters for similar reasons. The outcome of this study provides a technical basis for MIP on clayey soils.
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2019 |
Yuan SY, Liu XF, Buzzi O, 'Effects of soil structure on the permeability of saturated Maryland clay', GEOTECHNIQUE, 69 72-78 (2019) [C1]
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2019 |
Ye Y, Thoeni K, Yawu Z, Buzzi O, Giacomini A, 'A novel 3D clumped particle method to simulate the complex mechanical behavior of rock', International Journal of Rock Mechanics and Minings Sciences, (2019) [C1]
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2018 |
Buzzi O, Casagrande D, 'A step towards the end of the scale effect conundrum when predicting the shear strength of large in situ discontinuities', International Journal of Rock Mechanics and Mining Sciences, 105 210-219 (2018) [C1]
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2018 |
Casagrande D, Buzzi O, Giacomini A, Lambert C, Fenton G, 'A New Stochastic Approach to Predict Peak and Residual Shear Strength of Natural Rock Discontinuities', ROCK MECHANICS AND ROCK ENGINEERING, 51 69-99 (2018) [C1]
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2018 |
Mentani A, Govoni L, Giacomini A, Gottardi G, Buzzi O, 'An Equivalent Continuum Approach to Efficiently Model the Response of Steel Wire Meshes to Rockfall Impacts', Rock Mechanics and Rock Engineering, 51 2825-2838 (2018) [C1]
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2018 |
Momenzadeh L, Moghtaderi B, Buzzi O, Liu X, Sloan SW, Murch GE, 'The thermal conductivity decomposition of calcite calculated by molecular dynamics simulation', COMPUTATIONAL MATERIALS SCIENCE, 141 170-179 (2018) [C1]
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2018 |
Rocchi I, Gragnano CG, Govoni L, Mentani A, Bittelli M, Castiglione P, et al., 'A new technique for deep in situ measurements of soil water retention behaviour', Geotechnical Research, 5 3-12 (2018) [C1] In situ measurements of soil suction and water content in deep soil layers still represent an experimental challenge. Mostly developed within agriculture-related disciplines, fiel... [more] In situ measurements of soil suction and water content in deep soil layers still represent an experimental challenge. Mostly developed within agriculture-related disciplines, field techniques for the identification of soil retention behaviour have been so far employed in the geotechnical context to monitor shallow landslides and seasonal volume changes beneath shallow foundations, within the most superficial ground strata. In this paper, a novel installation technique is presented, discussed and assessed, which allows extension of the use of commercially available low-cost and low-maintenance instruments to characterise deep soil layers. Multi-depth installations have been successfully carried out using two different sensor types to measure the soil suction and water content up to 7 m from the soil surface. Preliminary laboratory investigations were also shown to provide a reasonable benchmark to the field data. The results of this study offer a convenient starting point to accommodate important geotechnical works such as river and road embankments in the traditional monitoring of unsaturated soil variables.
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2017 |
Yuan S, Liu X, Buzzi O, 'Calibration of a Coupled Model to Predict the Magnitude of Suction Generated by Osmotic Technique With PES Membranes and Temperature Effect', GEOTECHNICAL TESTING JOURNAL, 40 144-149 (2017) [C1]
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2017 |
Buzzi O, Yuan S, Routley B, 'Development and Validation of a New Near-Infrared Sensor to Measure Polyethylene Glycol (PEG) Concentration in Water', SENSORS, 17 (2017) [C1]
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2016 |
Liu X, Zhang C, Yuan S, Fityus S, Sloan SW, Buzzi O, 'Effect of High Temperature on Mineralogy, Microstructure, Shear Stiffness and Tensile Strength of Two Australian Mudstones', Rock Mechanics and Rock Engineering, 49 3513-3524 (2016) [C1] This study aims at providing quality experimental data on the effects of temperature on tensile strength and small strain shear stiffness of two Australian mudstones. The objectiv... [more] This study aims at providing quality experimental data on the effects of temperature on tensile strength and small strain shear stiffness of two Australian mudstones. The objective is to provide multiscale data in view of developing a numerical model that can capture and simulate the complex multiphysics of underground coal fire propagation. Two mudstones were collected in the Hunter Valley, close to a known underground coal fire, referred to as ¿Burning Mountain.¿ The rock specimens were heated to a range of temperatures (maximum of 900¿°C) for 24¿h, and the materials were comprehensively characterized by X-ray diffraction, thermal gravimetric analyses, optical microscopy and scanning electron microscopy. In addition, mercury intrusion porosimetry was used in order to track changes in pore size distribution with temperature. Investigations at microscale were complemented by testing at the macroscale. In particular, the paper focuses on the evolution of the tensile strength and small strain shear stiffness as the materials are subjected to heating treatment. Results show that both parameters evolve in a non-monotonic manner with temperature. The observed mechanical responses are fully explained and corroborated by microstructural observations.
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2016 |
Liu XF, de Carteret R, Buzzi OP, Fityus SG, 'Microstructural effects of environmental salinity on unbound granular road pavement material upon drying', Acta Geotechnica, 11 445-451 (2016) [C1]
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2016 |
Mentani A, Giacomini A, Buzzi O, Govoni L, Gottardi G, Fityus S, 'Numerical Modelling of a Low-Energy Rockfall Barrier: New Insight into the Bullet Effect', Rock Mechanics and Rock Engineering, 49 1247-1262 (2016) [C1]
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2016 |
Yuan S, Liu X, Sloan SW, Buzzi OP, 'Multi-scale characterization of swelling behaviour of compacted Maryland clay', Acta Geotechnica, 11 789-804 (2016) [C1] This paper presents a comprehensive experimental investigation on time-dependent swelling behaviour at both macroscale and microscale of a natural Australian expansive soil in com... [more] This paper presents a comprehensive experimental investigation on time-dependent swelling behaviour at both macroscale and microscale of a natural Australian expansive soil in compacted state. A number of one-dimensional swelling tests under different vertical pressures, different initial void ratios and initial water contents were performed. The characterization at macroscale was complemented by extensive microstructural investigations through mercury intrusion porosimetry and scanning electron microscope observation on both as-compacted and swollen specimens. The results were discussed at two different scales within a framework of double-porosity, which was finalized by linking the macrostructural¿microstructural strains ratio with secondary swelling/compression coefficients. The multi-scale correlation appears to be largely independent of the specimen initial conditions. The study showed that the secondary swelling and primary swelling are governed by the same factors and that secondary swelling takes place mainly in macropores, of which the change magnitude depends on the level of confinement applied. The microstructural investigations show that swelling is accompanied by significant microfabric changes.
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2016 |
Zhang C, Jiang G, Liu X, Buzzi O, 'Arching in geogrid-reinforced pile-supported embankments over silty clay of medium compressibility: Field data and analytical solution', Computers and Geotechnics, 77 11-25 (2016) [C1] The objective of this study is to improve the understanding of load transfer mechanism of Geogrid-Reinforced Pile-Supported Embankments (GRPS) via a new 3D analytical approach and... [more] The objective of this study is to improve the understanding of load transfer mechanism of Geogrid-Reinforced Pile-Supported Embankments (GRPS) via a new 3D analytical approach and comprehensive field tests. A full-scale embankment was built over a silty clay of medium compressibility as a part of the Liuzhou-to-Nanning High-speed Railway (LNHR) in China. Six sections of the embankment have been heavily instrumented producing comprehensive data of high quality. Field measurements evidence the existence of soil arching, membrane contribution and ground reaction, phenomena that are all contributing to load transfer mechanism. The new 3D analytical arching model accounts for a triangular arrangement of piles and, unlike existing methods, accounts for all relevant components of load transfer mechanisms. In addition, two key parameters were introduced in the model: an elastoplastic state parameter of soil arching (a) and a coefficient of equivalent uniform stress (ß). The former was used to satisfy the load equilibrium in case of partial arching while the latter was adopted to allow possible nonuniform vertical stress acting on the ground surface. The so-called ground reaction method was incorporated in an innovative manner to take into account the reactive support of the subsoil beneath geogrid-reinforced layer when estimating the tension development in the geogrid. Finally, the performance of the proposed model was assessed against several existing models and field measurements. Results showed that the new model presented herein outperforms existing models and satisfactorily predicts both the pile efficiency and tension development within the geogrid.
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2016 |
Liu X, Yuan S, Sieffert Y, Fityus S, Buzzi O, 'Changes in Mineralogy, Microstructure, Compressive Strength and Intrinsic Permeability of Two Sedimentary Rocks Subjected to High-Temperature Heating', Rock Mechanics and Rock Engineering, 49 2985-2998 (2016) [C1] This study falls in the context of underground coal fires where burning coal can elevate the temperature of a rock mass in excess of 1000°. The objective of the research is to exp... [more] This study falls in the context of underground coal fires where burning coal can elevate the temperature of a rock mass in excess of 1000°. The objective of the research is to experimentally characterize the change in mechanical behaviour, mineralogy and microstructural texture of two sedimentary rocks when subjected to temperatures up to 1200¿°C for 24¿h. Specimens of local sandstone and mudstone were comprehensively characterized by X-ray diffraction and thermal-gravimetric analysis. These analyses were complemented by optical microscopy and scanning electron microscopy on polished thin sections. In addition, pore size distributions of these heated rocks were inferred by means of mercury intrusion porosimetry. These results were extended to an estimation of the intrinsic permeability using the Katz¿Thompson model. Investigations at micro scale were followed by mechanical testing (both unconfined and confined compression tests) on cylindrical specimens of heated rocks. Results show that the unconfined compressive strength (UCS) of both rock types tends to increase when the temperatures increases up to 900¿°C, beyond which the UCS tends to slightly decrease. As for the permeability, a clear increase in intrinsic permeability was observed for both rocks. The macroscopic behaviour was found to be fully consistent with the changes observed at micro scale.
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2015 |
Liu X, Buzzi O, Yuan S, Mendes J, Fityus S, 'Multi-scale characterization of the retention and shrinkage behaviour of four Australian clayey soils.', Canadian Geotechnical Journal, 53 854-870 (2015) [C1]
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2015 |
Buzzi O, Leonarduzzi E, Krummenacher B, Volkwein A, Giacomini A, 'Performance of High Strength Rock Fall Meshes: Effect of Block Size and Mesh Geometry', Rock Mechanics and Rock Engineering, 48 1221-1231 (2015) [C1] In rockfall science, the bullet effect refers to the perforation of a rockfall mesh by a small block traveling at high speed. To date, there is still no comprehensive experimental... [more] In rockfall science, the bullet effect refers to the perforation of a rockfall mesh by a small block traveling at high speed. To date, there is still no comprehensive experimental data set investigating the underlying mechanisms of such effect. The bullet effect illustrates the fact that the capacity of a rockfall mesh depends on the size and speed of the impacting block. This paper presents the results of an experimental study on the effect of block size and mesh geometry (aperture and wire diameter) on the mesh performance. The results clearly show that the amount of energy required to perforate the mesh drops as the blocks get smaller. They also suggest that the mesh performance reaches a maximum and reduces to zero when the mesh cannot sustain the static load imposed by very large blocks. The outcome of the first series validates an analytical model for mesh perforation, making it the first simple model capturing the bullet effect. A second series of tests focused on the effect of mesh geometry and it was found that decreasing the mesh aperture by 19¿% improves the performance by 50¿% while only an extra 30¿% could be gained by increasing the wire diameter by 33¿%. The outcomes of the second series were used to discuss and redefine a dimensionless geometrical parameter G* and to validate a simple power type equation relating the mesh characteristics and the mesh performance.
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2014 |
Liu X, Buzzi O, 'Use of hand-spray plaster as a coating for soil bulk volume measurement', Geotechnical Testing Journal, 37 (2014) [C1] This paper presents a new coating material [hand-spray plaster (HSP)] used to measure the bulk volume of soil specimens having irregular shapes. The new method has been validated ... [more] This paper presents a new coating material [hand-spray plaster (HSP)] used to measure the bulk volume of soil specimens having irregular shapes. The new method has been validated against two benchmark methods, namely, the wax and plastic bag methods, by conducting swelling and shrinkage tests on intact Maryland clay. The results show that the new method yields similar values of volume but with much reduced data scattering. The HSP method is also far easier to use than the other two methods. Finally, the stiffness of the coating has been measured and its restraining effect has been found to be negligible. Some of the benefits of using the HSP method are: (1) limited fluid retention by the specimen postimmersion for volume measurement, (2) reduced water-intake rate with elimination of cracking upon swelling caused by high-suction gradients, (3) absence of the restraining effect on specimens upon swelling, and (4) accurate determination of the swelling and shrinkage curves with only one specimen per curve. Copyright by ASTM Int'l (all rights reserved).
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2014 |
Buzzi O, Sieffert Y, Mendes J, Liu X, Giacomini A, Seedsman R, 'Strength of an Australian Coal Under Low Confinement', Rock Mechanics and Rock Engineering, 47 2265-2270 (2014) [C1]
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2014 |
de Carteret R, Buzzi O, Fityus S, Liu X, 'Effect of Naturally Occurring Salts on Tensile and Shear Strength of Sealed Granular Road Pavements', JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 26 (2014) [C1]
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2014 |
Sieffert Y, Buzzi O, Collin F, 'Numerical study of shear band instability and effect of cavitation on the response of a specimen under undrained biaxial loading', INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 51 1686-1696 (2014) [C1]
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2013 |
Mendes J, Buzzi O, 'New insight into cavitation mechanisms in high-capacity tensiometers based on high-speed photography', Canadian Geotechnical Journal, 50 550-556 (2013) [C1] The high-capacity tensiometer developed by Ridley and Burland in 1993 is a milestone in experimental unsaturated soil mechanics. This device, which relies on development of tensio... [more] The high-capacity tensiometer developed by Ridley and Burland in 1993 is a milestone in experimental unsaturated soil mechanics. This device, which relies on development of tension in an enclosed water body, permits direct measurement of negative water potential. Many tensiometers have been built since 1993, all being based on the same principle although the design may differ slightly from the original. In particular, the common characteristic is a very small water reservoir that is believed to be the location of bubble nucleation, a phenomenon referred to as cavitation that impedes the sensor from functioning properly. Many have studied cavitation and different explanations or cavitation mechanisms have been proposed. However, all the considerations put forward were derived without being able to capture what happened inside the water reservoir at cavitation. This is now achieved with the new tensiometer specifically designed to "see" inside the water reservoir during suction measurement. For the first time, cavitation has been captured via high-speed photography and the mechanisms of cavitation can be explained using physical evidence. The first outcome is that it is possible for a high-capacity tensiometer to function to its full range with a large water reservoir. Then, the analysis of high-speed photographs reveals that the bubbles triggering cavitation are nucleated in the ceramic and make their way to the water reservoir. Cavitation occurs only when the air phase reaches the water reservoir.
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2013 |
Spadari M, Kardani M, De Carteret R, Giacomini A, Buzzi O, Fityus S, Sloan SW, 'Statistical evaluation of rockfall energy ranges for different geological settings of New South Wales, Australia', ENGINEERING GEOLOGY, 158 57-65 (2013) [C1]
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2013 |
Fityus SG, Giacomini A, Buzzi O, 'The significance of geology for the morphology of potentially unstable rocks', Engineering Geology, 162 43-52 (2013) [C1] From a consideration of the concepts of geological weathering and structure, it can be expected that rockfall hazards should be characteristically different in different geologica... [more] From a consideration of the concepts of geological weathering and structure, it can be expected that rockfall hazards should be characteristically different in different geological environments. This paper tests this idea by looking at the geometric characteristics of rock fragments formed on natural slopes in four different geological environments in Eastern Australia, where rockfall phenomena are often characterised by rolling of pre-detached debris. By measuring the three principle dimensions and making a systematic assessment of the shape characteristics of samples of rock debris in significant geological environments, it is found that the distributions of size and shape for the surface debris are statistically different. From the results, it is shown that the size and shape of debris is directly controlled by the rock type, its weathering characteristics and the structure of the parent rock mass. The severity of rockfall hazards is shown to be relatively lower in areas of Tertiary basalt, as the size of rolling fragments is limited by closely spaced fracturing inherited from its formation and the tendency to deteriorate further as it weathers deeply and rapidly. It is also lower in areas of Palaeozoic volcanics, since these tend to produce relatively angular fragments with higher proportions of fragments that are inherently more resistant to rolling. By contrast, thickly bedded sandstones form larger blocks with a larger proportion of shapes that are more prone to rolling. The size distribution of fragments is shown to be well approximated by a log-normal statistical distribution, and using the data provided in this study, it is possible to generate the size and shape data needed to undertake a stochastic assessment of rockfall trajectories in different geological environments. © 2013.
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2013 |
De Carteret R, Buzzi O, Fityus S, 'Installation, calibration, and application of dielectric sensors in laboratory studies of compacted unsaturated granular materials', Geotechnical Testing Journal, 36 (2013) [C1]
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2013 |
Hambleton JP, Buzzi O, Giacomini A, Spadari M, Sloan SW, 'Perforation of Flexible Rockfall Barriers by Normal Block Impact', ROCK MECHANICS AND ROCK ENGINEERING, 46 515-526 (2013) [C1]
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2013 |
Buzzi O, Spadari M, Giacomini A, Fityus S, Sloan SW, 'Experimental Testing of Rockfall Barriers Designed for the Low Range of Impact Energy', ROCK MECHANICS AND ROCK ENGINEERING, 46 701-712 (2013) [C1]
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2012 |
Russell AR, Buzzi OP, 'A fractal basis for soil-water characteristics curves with hydraulic hysteresis', Geotechnique, 62 269-274 (2012) [C1]
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2012 |
Buzzi OP, Giacomini A, Spadari M, 'Laboratory investigation on high values of restitution coefficients', Rock Mechanics and Rock Engineering, 45 35-43 (2012) [C1]
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2012 |
Spadari M, Giacomini A, Buzzi OP, Hambleton JP, 'Prediction of the bullet effect for rockfall barriers: A scaling approach', Rock Mechanics and Rock Engineering, 45 131-144 (2012) [C1]
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2012 |
Liu X, Collin F, Buzzi OP, Sloan SW, 'Numerical modelling of ground temperature evolution as a result of underground coal fire', Australian Geomechanics Journal, 47 27-32 (2012) [C1]
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2012 |
Buzzi OP, Grimes SB, Rolls AC, 'Writing for the discipline in the discipline?', Teaching in Higher Education, 17 479-484 (2012) [C1]
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2012 |
Spadari M, Giacomini A, Buzzi OP, Fityus SG, Giani GP, 'In situ rockfall testing in New South Wales, Australia', International Journal of Rock Mechanics and Mining Sciences, 49 84-93 (2012) [C1]
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2011 |
Buzzi OP, Giacomini A, Fityus SG, 'Towards a dimensionless description of soil swelling behaviour', Geotechnique, 61 271-277 (2011) [C1]
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2010 |
Buzzi OP, 'On the use of dimensional analysis to predict swelling strain', Engineering Geology, 116 149-156 (2010) [C1]
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2010 |
Buzzi OP, Fityus SG, Sloan SW, 'Use of expanding polyurethane resin to remediate expansive soil foundations', Canadian Geotechnical Journal, 47 623-634 (2010) [C1]
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2010 |
Lambert C, Buzzi OP, Giacomini A, 'Influence of calcium leaching on the mechanical behavior of a rock-mortar interface: A DEM analysis', Computers and Geotechnics, 37 258-266 (2010) [C1]
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2009 |
Fityus SG, Buzzi OP, 'The place of expansive clays in the framework of unsaturated soil mechanics', Applied Clay Science, 43 150-155 (2009) [C1]
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2009 |
Narsilio GA, Buzzi OP, Fityus SG, Yun TS, Smith DW, 'Upscaling of Navier-Stokes equations in porous media: Theoretical, numerical and experimental approach', Computers and Geotechnics, 36 1200-1206 (2009) [C1]
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2009 |
Al-Tarawneh KK, Buzzi OP, Krabbenhoft K, Lyamin AV, Sloan SW, 'An indirect approach for correlation of permeability and diffusion coefficients', Diffusion and Defect Data: Pt A. Defect and Diffusion Forum, 283-286 504-514 (2009) [C1]
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2009 |
Al-Tarawneh KK, Buzzi OP, Krabbenhoft K, Lyamin AV, 'Discussion of the Paper 'Experimental Investigation into Concentration-Dependent Chloride Diffusivity in Glass Beads and Fine Sand' by K. Prabhakaran Nair, A. Praveen, and S. Chandrakaran', Journal of Porous Media, 12 289-291 (2009) [C3]
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2009 |
Giacomini A, Buzzi OP, Renard B, Giani GP, 'Experimental studies on fragmentation of rock falls on impact with rock surfaces', International Journal of Rock Mechanics and Mining Sciences, 46 708-715 (2009) [C1]
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2008 |
Giacomini A, Buzzi OP, Ferraro AM, Migliazza M, Giani GP, 'Numerical study of flow anisotropy within a single natural rock joint', International Journal of Rock Mechanics and Mining Sciences, 45 47-58 (2008) [C1]
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2008 |
Buzzi OP, Pedroso DM, Giacomini A, 'Caveats on the implementation of the generalized material point method', Computer Modeling in Engineering & Sciences, 31 85-106 (2008) [C1]
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2008 | Lopez P, Thoraval A, Buzzi OP, Rahmani I, Boulon M, 'Advances in constitutive modeling of jointed rock hydro mechanical interactions at laboratory scale', Studia Geotechnica et Mechanica, 30 223-233 (2008) [C2] | Nova | |||||||||
2008 |
Buzzi OP, Fityus SG, Sasaki Y, Sloan SW, 'Structure and properties of expanding polyurethane foam in the context of foundation remediation in expansive soil', Mechanics of Materials, 40 1012-1021 (2008) [C1]
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2008 |
Buzzi OP, Boulon M, Herve M, Su K, 'Leaching of rock-concrete interfaces', Rock Mechanics and Rock Engineering, 41 445-466 (2008) [C1]
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2008 |
Fityus SG, Buzzi OP, 'On the use of the Thornthwaite Moisture Index to infer depths of seasonal moisture change', Australian Geomechanics, 43 43-54 (2008) [C1]
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2007 |
Buzzi O, Hans J, Boulon M, Deleruyelle F, Besnus F, 'Hydromechanical study of rock-mortar interfaces', Physics and Chemistry of the Earth, 32 820-831 (2007) [C1] Hydromechanical compression tests have been performed on rock-mortar interfaces representing the contact between a host rock and a concrete bulkhead within an underground nuclear ... [more] Hydromechanical compression tests have been performed on rock-mortar interfaces representing the contact between a host rock and a concrete bulkhead within an underground nuclear waste repository. The rock used in the tests is a Toarcian argillite. Most published studies concerning rock-concrete interfaces involve concrete-concrete contacts in which rock replicas are used instead of real rock samples. As a result, the effect of rock features, such as bedding planes and changes of the rock interface zone, on the hydromechanical behaviour of the interface cannot be investigated. The tests discussed in this paper demonstrate that the mechanical response is not affected when changing the parameters of the samples even not mismatching both walls. On the contrary, an initial monitored lateral displacement modifies the hydromechanical behaviour by limiting the interface ability to be hydraulically closed. The latter ability has been quantified by a simple evolution law and the difference of behaviour between the two kinds of samples has been confirmed. The analysis led to determine the hydraulic aperture shows that the values obtained are much lower to the classical values available in the literature. Finally, the application of the experimental results to the confinement by a bulkhead showed the localization of the flow within the interface. © 2006 Elsevier Ltd. All rights reserved.
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2003 |
Jafari MK, Amini Hosseini K, Pellet F, Boulon M, Buzzi O, 'Evaluation of shear strength of rock joints subjected to cyclic loading', Soil Dynamics and Earthquake Engineering, 23 619-630 (2003) [C1] Variation of the shear strength of rock joints due to cyclic loadings is studied in the present paper. Identical joint surfaces were prepared using a developed moulding method wit... [more] Variation of the shear strength of rock joints due to cyclic loadings is studied in the present paper. Identical joint surfaces were prepared using a developed moulding method with special mortar and shear tests were performed on these samples under both static and cyclic loading conditions. Different levels of shear displacement were applied on the samples to study joint behaviour before and during considerable relative shear displacement. It was found that the shear strength of joints is related to rate of displacement (shearing velocity), number of loading cycles and stress amplitude. Finally, based on the experimental results, mathematical models were developed for evaluation of shear strength in cyclic loading conditions. © 2003 Elsevier Ltd. All rights reserved.
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Show 72 more journal articles |
Conference (75 outputs)
Year | Citation | Altmetrics | Link | ||||||||
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2023 |
Vidler A, Buzzi O, Fityus S, 'A microstructure-based procedure to simulate the effect of wetting-drying cycles on the soil water retention curve', E3S Web of Conferences, Milos, Greece (2023) [E1]
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2023 |
Bertolini I, Vidler A, Gottardi G, Buzzi O, 'Numerical Investigation into the effects of rainfall and long stem plants spacing on Root Water Uptake (RWU)', E3S Web of Conferences, Milos, Greece (2023) [E1]
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2023 |
Mendes J, Jamali A, Najdi A, Encalada D, Bruno AW, Prat PC, et al., 'High Capacity Tensiometers: Performance and behaviours', E3S Web of Conferences, Milos, Greece (2023) [E1]
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2023 |
Buzzi O, Li J, Pineda J, Payne D, Ouyang K, Wu J, 'Stress-strain behaviour of unsaturated compacted coal rejects and tailings', E3S Web of Conferences, Milos, Greece (2023) [E1]
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2021 |
Nader F, Thoeni K, Giacomini A, Fityus S, Buzzi O, 'Numerical Investigation of the Strength Variability of Rock Using DEM', Challenges and Innovations in Geomechanics Proceedings of the 16th International Conference of IACMAG, Virtual (2021) [E1]
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2021 |
Butcher C, Fityus S, Giacomini A, Thoeni K, Guccione D, Buzzi O, 'The effect of impact angle and bond strength on fragmentation in laminated materials', IOP Conference Series: Earth and Environmental Science, Turin, Italy (2021) [E1]
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2021 |
Guccione DE, Buzzi O, Thoeni K, Fityus S, Butcher C, Giacomini A, 'Sensitivity analysis of a new model to predict the survival probability of artificial rock blocks upon dynamic impact', EUROCK 2021 Mechanics and Rock Engineering, from Theory to Practice, Turin, Italy (2021) [E1]
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2021 |
Bertrand F, Buzzi O, Collin F, 'Hydro-Mechanical Modelling of Multiphase Flow in Coalbed by Computational Homogenization', Challenges and Innovations in Geomechanics Proceedings of the 16th International Conference of IACMAG, Turin, Italy (2021) [E1]
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2021 |
Jeffery M, Huang J, Fityus S, Giacomini A, Buzzi O, 'Effect of sampling interval on the output statistics of large 3D discontinuity surfaces generated by a multiscale random field model', Proceedings of the EUROCK 2021 Conference on Rock Mechanics and Rock Engineering, Turin, Italy (2021) [E1]
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2020 |
Tahmasbi S, Giacomini A, Bucher R, Buzzi O, 'A new approach to simulate the dynamic response of high-tensile chain-link drapery systems', Proceedings of the 2020 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering, online (2020) [E1]
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2020 |
Vidler A, Buzzi O, Fityus S, 'Effect of coal on mine tailings' water permeability and water retention', E3S Web of Conferences, Lisboa, Portugal (2020) [E1]
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2020 |
Ye Y, Thoeni K, Zeng YW, Buzzi O, Giacomini A, 'A simple and efficient 3D clumped particle strategy to model brittle rocks', Rock Mechanics for Natural Resources and Infrastructure Development- Proceedings of the 14th International Congress on Rock Mechanics and Rock Engineering, ISRM 2019, Foz Do Iguassu, Brazil (2020) [E1]
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2019 |
Guccione DE, Thoeni K, Buzzi O, Fityus S, Giacomini A, 'Development of an apparatus to track rock fragment trajectory in 3D', Rock Mechanics for Natural Resources and Infrastructure Development - Full Papers: Proceedings of the 14th International Congress on Rock Mechanics and Rock Engineering (ISRM 2019), Foz do Iguaçu, (2019) [E1]
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2019 |
Ye Y, Thoeni K, Zeng YW, Buzzi O, Giacomini A, 'A novel 3D clumped particle strategy to simulate the complex mechanical behavior of brittle rocks', Rock Mechanics for Natural Resources and Infrastructure Development - Full Papers: Proceedings of the 14th International Congress on Rock Mechanics and Rock Engineering (ISRM 2019), Foz do Iguaçu, Brazil (2019) [E1]
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2019 |
Guccione DE, Fityus S, Gregg N, Giacomini A, Buzzi O, 'Experimental study on influence of impact angle on fragmentation of brittle blocks upon dynamic impact.', Proceedings of the 13th Australia New Zealand Conference on Geomechanics, Perth, WA (2019) [E1]
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2019 |
Yuan S, Liu X, Buzzi O, 'Influence of pore water salinity on the compressibility of Maryland clay', Japanese Geotechnical Society Special Publication: 7th Asia-Pacific Conference on Unsaturated Soils, Nagoya, Japan (2019) [E1]
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2018 |
Tahmasbi S, Giacomini A, Wendeler C, Buzzi O, '3D finite element modelling of chain-link drapery system', GEOMECHANICS AND GEODYNAMICS OF ROCK MASSES (EUROCK2018), VOLS 1 AND 2, RUSSIA, Saint Petersburg (2018) [E1]
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2018 |
Jeffery M, Lapastoure Gritchou L, Giacomini A, Griffiths V, Buzzi O, 'Comparison of different approaches to predict the shear Strength of large rock discontinuities', Geomechanics and Geodynamics of Rock Masses (2018) [E1] Reliable prediction of shear strength for engineering scale in-situ discontinuities is still problematic. There is currently no consensus or a satisfactory method to estimate shea... [more] Reliable prediction of shear strength for engineering scale in-situ discontinuities is still problematic. There is currently no consensus or a satisfactory method to estimate shear strength, account for surface variability and manage the effects of the recognised ¿scale effect¿ phenomenon. Shear behaviour of a discontinuity rock mass greatly depends upon the rock joint roughness, which is generally concealed within the rock mass. As such, the limited amount of accessible surface information complicates even further the exercise of shear strength prediction. Often, small size specimens (e.g. rock core) are recovered to conduct experimental tests and predictions can be made from analysing traces. In this paper, three different shear strength prediction approaches were followed and their relative performances were compared. The results reveal that the prediction of shear strength from recovered sub samples can be significantly variable. The application of Barton¿s empirical model to four selected traces, produced a large scattering of results, with the prediction highly dependent on the trace used. Conversely, the application of Casagrande and co-workers¿ stochastic approach on the same traces, produced the least scatter and provides statistical data to quantify variability and uncertainty.
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2016 | Altarawneh K, Buzzi OP, Sloan S, Abu Zaher HS, Gaudin C, Jaradat AQ, et al., 'Derivation of scaling relationships for heat transfer in geothermal energy applications', International Conference on Geomechanics, Geo-energy and Geo-resources, IC3G 2016, Melbourne, Australia (2016) [E1] | Nova | |||||||||
2016 |
Yuan S, Liu X, Sloan S, Buzzi O, 'Characterization of the secondary swelling of compacted Maryland clay', 3RD EUROPEAN CONFERENCE ON UNSATURATED SOILS - E-UNSAT 2016, Paris, FRANCE (2016) [E1]
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2016 |
Buzzi O, Routley B, Yuan S, 'Validation of a new sensor to measure the concentration of polyethylene glycol for unsaturated soil testing', 3RD EUROPEAN CONFERENCE ON UNSATURATED SOILS - E-UNSAT 2016, Paris, FRANCE (2016) [E1]
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2016 |
Yuan S, Liu X, Buzzi O, 'Response of different osmotic membranes and calibration of a coupled model capturing the temperature effect for the osmotic method', 3RD EUROPEAN CONFERENCE ON UNSATURATED SOILS - E-UNSAT 2016, Paris, FRANCE (2016) [E1]
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2015 |
Liu X, Buzzi OP, Fityus S, Sieffert Y, 'Mechanical behaviour of an australian mudstone subjected to heating treatment at high-temperatures', 13th ISRM International Congress of Rock Mechanics Proceedings, Montreal, Canada (2015) [E1]
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2015 |
Sieffert Y, Buzzi O, Collin F, Chambon R, 'Modelling hydromechanical dilation geomaterial cavitation and localization', Springer Series in Geomechanics and Geoengineering (2015) [E1] This paper presents an extension of the local second gradient model to multiphasic materials (solid particles, air, water) and including the cavitation phenomenon. This new develo... [more] This paper presents an extension of the local second gradient model to multiphasic materials (solid particles, air, water) and including the cavitation phenomenon. This new development was made in order to model the response of saturated dilatant materials under deviatoric stress and undrained conditions and possibly, in future, the behaviour of unsaturated soils.
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2015 |
Johnston J, Fityus S, Buzzi O, Rodgers C, Kingsland R, 'Engineering Properties of Permian Clay Tuffs', ENGINEERING GEOLOGY FOR SOCIETY AND TERRITORY, VOL 6: APPLIED GEOLOGY FOR MAJOR ENGINEERING PROJECTS, Torino, ITALY (2015) [E1]
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2014 |
Liu XF, Buzzi OP, Vaunat J, 'Influence of stress-volume path on swelling behavior of an expansive clay', Unsaturated Soils: Research and Applications, Sydney (2014) [E1]
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2014 |
Suradi M, Fourie A, Beckett C, Buzzi O, 'Rainfall-induced landslides: Development of a simple screening tool based on rainfall data and unsaturated soil mechanics principles', UNSATURATED SOILS: RESEARCH & APPLICATIONS, VOLS 1 AND 2, Sydney, AUSTRALIA (2014)
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2014 |
Mendes J, Buzzi O, 'Performance of the University of Newcastle high capacity tensiometers', UNSATURATED SOILS: RESEARCH & APPLICATIONS, VOLS 1 AND 2, Sydney, AUSTRALIA (2014)
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2014 |
Johnston J, Fityus S, Buzzi O, 'Effect of coal addition on the swelling potential of a weathered claystone', Unsaturated Soils: Research and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014 (2014) [E1] The Hunter Expressway is a $1.7 billion road project in the Hunter Valley, NSW, Australia to provide a new east-west connection between Newcastle and the Lower Hunter. A large par... [more] The Hunter Expressway is a $1.7 billion road project in the Hunter Valley, NSW, Australia to provide a new east-west connection between Newcastle and the Lower Hunter. A large part of the materials encountered on site are expansive tuffaceous soils that would normally be discarded. However, because of increasing financial, environmental and space constraints, it is required to make use of these swelling materials in embankments. These materials include highly weathered claystone containing about 20% in mass of smectite. The highly plastic claystone is present in layers alternating with layers of nonplastic coal. Hence, when excavating the material, the claystone is mixed with the coal and it becomes relevant to consider the swelling potential of the mixture instead of that of the claystone alone. Some typical coal and claystone materials used in embankments were characterized by compaction curves and Atterburg limits. Then, a series of swelling tests were conducted on compacted specimens, of mixtures of coal and claystone, prepared in the laboratory with comparable initial conditions (suction and void ratio) so that any change in swelling potential could be solely attributed to the coal content. The results show that the addition of the coal has an effect in reducing the swelling potential of the claystone beyond a simple dilution effect. Some type of swell inhibition is implied. The addition of coal also significantly reduces the time taken for final swell strain to be reached. © 2014 Taylor & Francis Group, London. |
Nova | |||||||||
2012 | Aryal S, Kingsland R, Och D, Sooklall A, Burton GJ, Russell G, Buzzi OP, 'Management of reactive and carbonaceous materials in the earthworks design for the Hunter Expressway, Minmi to Buchanan section', 11th Australian New Zealand Conference on Geomechanics Conference Proceedings, Melbourne, Australia (2012) [E1] | Nova | |||||||||
2012 |
Liu X, Collin F, Buzzi OP, Sloan SW, 'Numerical modelling of ground temperature evolution and soil subsidence as a result of underground coal fire', 11th Australian New Zealand Conference on Geomechanics Conference Proceedings, Melbourne, Australia (2012) [E1]
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Nova | |||||||||
2012 | Buzzi OP, Fityus SG, Kingsland R, Aryal S, Russell G, 'Monitoring of an encapsulated embankment for the validation of a dimensionless model for soil swelling', 11th Australian New Zealand Conference on Geomechanics Conference Proceedings, Melbourne, Australia (2012) [E1] | Nova | |||||||||
2012 |
Spadari M, De Carteret RS, Fityus SG, Giacomini A, Buzzi OP, 'Design parameters for rockfall protection barriers in the rocks of the Narrabeen Group', 11th Australian New Zealand Conference on Geomechanics Conference Proceedings, Melbourne, Australia (2012) [E1]
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Nova | |||||||||
2012 |
Hambleton JP, Buzzi OP, Giacomini A, Spadari M, Sloan SW, 'Perforation of rockfall protection barriers by normal block impact', 46th US Rock Mechanics / Geomechanics Symposium 2012, Chicago, IL (2012) [E1]
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Nova | |||||||||
2012 |
Liu X, Buzzi OP, 'Experimental characterization of shrinkage behaviour of Australian expansive soils', Unsaturated Soils: Research and Applications, Napoli, Italy (2012) [E1]
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Nova | |||||||||
2012 |
De Carteret R, Watson M, Buzzi O, Fityus S, 'Effects of dryland salinity on shear and tensile strength of road pavement materials', 7th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2012 (2012) In Australia there has been a significant increase in areas affected by dryland salinity over the 200 years since European settlement. As a result of land use and climatic changes... [more] In Australia there has been a significant increase in areas affected by dryland salinity over the 200 years since European settlement. As a result of land use and climatic changes this trend is expected to continue, with areas at high risk of dryland salinity predicted to more than double over the next 40 years. This presents a significant risk to road asset managers as concentration of salts within road pavements has been shown to cause damage to pavements and surfacings. The present study explores the impact of dryland salinity on road pavements by assessing the effect of naturally occurring salts on the tensile and shear strength of a sealed granular pavement. Tensile and shear strength testing was conducted on a granular pavement material at a range of salt concentrations. This testing confirmed that the presence of natural salts can have a positive effect on bitumen-sealed granular pavements in contrast to the negative impact salt crystallisation can have on bitumen surfacings. While in solution, salts were found to have a very small positive effect on tensile and shear strength, which is likely related to clay chemistry interactions. Upon crystallisation, salts were observed to form cubic bonds within the pores of the granular material which led to a significant increase in tensile strength. However, at interface between the surfacing and the granular material whisker-shaped crystals were observed to grow from the bitumen. The results suggest that increases in dryland salinity, while presenting a risk to the performance of road surfacings, may actually increase the tensile and shear strength of road pavement materials.
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2011 |
Buzzi OP, Giacomini A, Spadari M, Fityus SG, 'Numerical modeling of a rock fall mesh perforation upon impact', Computer Methods for Geomechanics: Frontiers and New Applications, Volume 2, Melbourne, VIC (2011) [E1]
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2011 | Pedroso DM, Williams DJ, Scheuermann A, Farias MM, Buzzi OP, 'Extended Barcelona Basic Model to the cyclic behaviour of unsaturated soils', Computer Methods for Geomechanics: Frontiers and New Applications. Volume 2, Melbourne, VIC (2011) [E1] | Nova | |||||||||
2011 | De Carteret RS, Buzzi OP, Fityus SG, 'An experimental study of salt movement and accumulation within unsaturated granular road pavements', Unsaturated Soils: Theory and Practice, Pattaya, Thailand (2011) [E1] | ||||||||||
2011 |
Fityus SG, Buzzi OP, Imre E, 'Large scale tests on the expansiveness of resin-injected clay', Unsaturated Soils: Theory and Practice, Pattaya, Thailand (2011) [E1]
|
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2010 |
Giacomini A, Spadari M, Fityus SG, Buzzi OP, 'Experimental study on the rockfall motion characteristics in the basalts of eastern Australia', Proceedings of the 11th International Association of Engineering Geology Congress, Auckland, New Zeeland (2010) [E1]
|
Nova | |||||||||
2010 |
Fityus SG, Spadari M, Giacomini A, Buzzi OP, 'The characteristics of rock fragments in the basalts of eastern Australia', Proceedings of the 11th International Association of Engineering Geology Congress, Auckland, New Zeeland (2010) [E1]
|
Nova | |||||||||
2010 | De Carteret RS, Buzzi OP, Fityus SG, 'A review of the effects of salinity on road pavements and bituminous surfacings', 24th ARRB Conference Proceedings, Melbourne, Vic (2010) [E1] | Nova | |||||||||
2010 |
Giacomini A, Spadari M, Buzzi OP, Fityus SG, Giani GP, 'Rockfall motion characteristics on natural slopes of eastern Australia', Rock Mechanics in Civil and Environmental Engineering, Lausanne, Switzerland (2010) [E1]
|
Nova | |||||||||
2010 | Fityus SG, Buzzi OP, Holt MJ, Gunther TR, 'The effect of ripping clay soil on swell behaviour', Proceedings of the Fifth International Conference on Unsaturated Soils, Barcelona, Spain (2010) [E1] | Nova | |||||||||
2010 | Buzzi OP, Fityus SG, Sloan SW, 'Overview of the swelling problem in relation to injection of expanding resin in expansive soils', Unsaturated Soils: Experimental Studies in Unsaturated Soils and Expansive Soils: Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils, Newcastle, NSW (2010) [E1] | Nova | |||||||||
2010 | Fityus SG, Buzzi OP, Imre E, 'Problems in testing problematic expansive soils', Proceedings of the 3rd International Conference on Problematic Soils, Adelaide, SA (2010) [E1] | Nova | |||||||||
2009 |
Lambert C, Buzzi OP, Giacomini A, 'DEM study of the mechanical behavior of a leached interface upon shearing', Rock Engineering in Difficult Conditions: 3rd Canada-US Rock Mechanics Symposium & 20th Canadian Rock Mechanics Symposium: Abstracts, Toronto, ONT (2009) [E3]
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2008 | Al-Tarawneh KK, Buzzi OP, Krabbenhoft K, Lyamin AV, Sloan SW, 'An indirect approach for correlation of permeability and diffusion coefficients', Abstract Book: 4th International Conference on Diffusion in Solids and Liquids, Barcelona, Spain (2008) [E3] | ||||||||||
2008 |
Buzzi OP, Giacomini A, Fityus SG, 'A dimensionless model for soil swelling behaviour', Proceedings of the 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG), Goa, India (2008) [E1]
|
Nova | |||||||||
2008 | Buzzi OP, Fityus SG, 'Natural drying of expansive soils and validity of the effective stress principle', SEC2008: International Symposium Drought and Constructions, Marne-la-Vallee (2008) [E1] | Nova | |||||||||
2008 |
Lambert C, Buzzi OP, Giacomini A, 'Modelling the mechanical behaviour of leached interface', WCCM8, ECCOMAS 2008, Venice, Italy (2008) [E3]
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2008 |
Giacomini A, Buzzi OP, Krabbenhoft K, 'Modelling the asperity degradation of a sheared rock joint using FEM', WCCM8, ECCOMAS 2008, Venice, Italy (2008) [E3]
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2008 | Krabbenhoft K, Karim MR, Altarawneh M, Buzzi OP, Lyamin AV, 'Virtual testing and computational homogenization of geomaterials', WCCM8, ECCOMAS 2008, Venice, Italy (2008) [E3] | ||||||||||
2007 | Buzzi OP, Fityus SG, Sasaki Y, 'Influence of polyurethane resin injection on hydraulic properties of expansive soil', Proceedings of the 3rd Asian Conference on Unsaturated Soils, Nanjing, China (2007) [E1] | ||||||||||
2007 |
Buzzi OP, Fityus SG, Sloan SW, 'Proposition for a simple volume change model for expansive saturated soils', Numerical Models in Geomechanics: Proceedings of the Tenth International Symposium on Numerical Models in Geomechanics (NUMOG X), Rhodes, Greece (2007) [E1]
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2007 | Buzzi OP, Fityus SG, Sasaki Y, 'Conceptual model for the remediation of expansive clay foundations using expanding polyurethane resin', Common Ground. 10th Australia New Zealand Conference on Geomechanics. Proceedings, Brisbane (2007) [E1] | ||||||||||
2006 |
Lopez P, Rahmani I, Buzzi O, Boulon M, Thoraval A, Escuredo-Rodriguez M, 'Void space against fracture hydro mechanical behavior at sample scale', Proceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics (2006) Results from laboratory experiments on natural fracture samples from the medium (roughly 20 m by 20 m by 20 m) sized superficial limestone bedrock reservoir, namely Coaraze natura... [more] Results from laboratory experiments on natural fracture samples from the medium (roughly 20 m by 20 m by 20 m) sized superficial limestone bedrock reservoir, namely Coaraze natural site, France, is presented here. The BCR3D (3D direct shear box) with its hydraulic sectorized device, and its portable laser beam from 3S (Soils, Solids, Structures) Laboratory, France, was used. The interpretation of the cyclic hydro mechanical compression tests shows an apparent residual intrinsic transmissivity of Tr = 3 × 10-15 m3, the evolution of the intrinsic transmissivity versus the normal stress is anisotropic. The comparison of the fracture void spaces with hydro mechanical factors show that: the back computed method to obtain the void spaces is verified for low normal stress values, and the anisotropy of the outflow is explained by the modeled evolution of the void spaces with the normal stress. The Dunat (1996) law that depends on the contact surface could integrate a spatial distribution and damage factor and/or a plastic parameter. © 2006 Taylor & Francis Group.
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2005 |
Lopez P, Buzzi O, Boulon M, Thoraval A, Souley M, 'Improvement of hydro mechanical behavior knowledge of rock joint from laboratory tests and in-situ experiments', Impact of Human Activity on the Geological Environment - Proceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2005 (2005) A wide study of the medium (roughly 20m by 20 m by 20 m) sized superficial sandstone bedrock reservoir, namely Coaraze natural site, France, is planned. Laboratory and site experi... [more] A wide study of the medium (roughly 20m by 20 m by 20 m) sized superficial sandstone bedrock reservoir, namely Coaraze natural site, France, is planned. Laboratory and site experiments will be compared and the data set will be used for simulations with 3DEC/3Flow ITASCA code implemented with later models. A part of the laboratory experiments is presented here. The BCR3D (3D direct shear box) with its hydraulic sectorized device, and its portable laser beam from 3S (Soil, Structure, Solide) Laboratory, France, is used. The interpretation of the rock matrix characterization tests, of the cyclic mechanical compression test, and the cyclic hydro mechanical compression tests show that the normal stiffness is stress dependent, the initial normal stiffness value, kn0 = 122 MPa/mm, dependent on the initial fitting of the two joint walls, and the maximum normal stiffness value, knimax = 164.3 MPa/m, is reached at dmax =0.5 mm of normal displacement. © 2005 Taylor & Francis Group. |
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Show 72 more conferences |
Report (2 outputs)
Year | Citation | Altmetrics | Link | ||
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2021 |
Giacomini A, Buzzi O, Fityus S, Elmouttie M, Hodgkinson J, Dean P, 'Predicting the Impact of Complex Joint Structures on Mine Operations', Australian Coal Association Research Program, 157 (2021)
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2013 |
Spadari M, Giacomini A, Buzzi O, Fityus S, 'Barriers for Cost Effective Rockfall Hazard Mitigation', Road and Traffci Authority of NSW, 360 (2013)
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Grants and Funding
Summary
Number of grants | 43 |
---|---|
Total funding | $27,235,081 |
Click on a grant title below to expand the full details for that specific grant.
20221 grants / $350,000
Glencore HDR Scholarship support$350,000
Funding body: Glencore Coal Assets Australia Pty Ltd
Funding body | Glencore Coal Assets Australia Pty Ltd |
---|---|
Project Team | Professor Anna Giacomini, Professor Olivier Buzzi, Professor Jinsong Huang, Associate Professor George Kouretzis, Doctor Jubert Pineda, Associate Professor Klaus Thoeni |
Scheme | Research Grant |
Role | Investigator |
Funding Start | 2022 |
Funding Finish | 2026 |
GNo | G2200160 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
20216 grants / $1,008,600
Underground Pumped Hydro Energy Storage Project$615,000
Funding body: Banpu Energy Australia Pty Ltd
Funding body | Banpu Energy Australia Pty Ltd |
---|---|
Project Team | Associate Professor Klaus Thoeni, Professor Anna Giacomini, Professor Olivier Buzzi, Professor Stephen Fityus |
Scheme | Research Grant |
Role | Investigator |
Funding Start | 2021 |
Funding Finish | 2023 |
GNo | G2100319 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
Capability for Dewatered Tailings and MPR Testing in Support of a Critical State Soil Mechanics Framework for Potential Liquefaction Assessment (Proposal 2020-264)$232,600
Funding body: Australian Coal Research Limited
Funding body | Australian Coal Research Limited |
---|---|
Project Team | Doctor Jubert Pineda, Professor Olivier Buzzi, Dr John Simmons, Dr Kai Koosmen, Professor Stephen Fityus |
Scheme | Australian Coal Association Research Program (ACARP) |
Role | Investigator |
Funding Start | 2021 |
Funding Finish | 2023 |
GNo | G2101242 |
Type Of Funding | C1700 - Aust Competitive - Other |
Category | 1700 |
UON | Y |
Application of the STADSS to Large in Situ Rocks Discontinuities, Developments and Validation$100,000
Funding body: PSM Admin Pty Limited
Funding body | PSM Admin Pty Limited |
---|---|
Project Team | Professor Olivier Buzzi, Mr Clarence Butcher, Professor Anna Giacomini, Doctor Mick Jeffery |
Scheme | Scholarship top up |
Role | Lead |
Funding Start | 2021 |
Funding Finish | 2024 |
GNo | G2101147 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
Shear strength and compressibility of Ok Tedi Waste rock$34,000
Funding body: Pells Sullivan Meynink
Funding body | Pells Sullivan Meynink |
---|---|
Project Team | Professor Olivier Buzzi, Professor Stephen Fityus |
Scheme | Research Grant |
Role | Lead |
Funding Start | 2021 |
Funding Finish | 2022 |
GNo | G2100850 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
Scoping Study on the geotechnical challenges associated with the development of a pumped hydro system at Wollombi Mine$18,000
Funding body: Glencore Coal Assets Australia Pty Ltd
Funding body | Glencore Coal Assets Australia Pty Ltd |
---|---|
Project Team | Professor Olivier Buzzi, Professor Stephen Fityus, Professor Anna Giacomini, Doctor Mick Jeffery, Doctor Jubert Pineda, Associate Professor Klaus Thoeni |
Scheme | Research Grant |
Role | Lead |
Funding Start | 2021 |
Funding Finish | 2021 |
GNo | G2101154 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
Large scale characterisation of waste rock pile capping materials$9,000
Funding body: GHD
Funding body | GHD |
---|---|
Project Team | Professor Olivier Buzzi, Professor Stephen Fityus |
Scheme | Project Grant |
Role | Lead |
Funding Start | 2021 |
Funding Finish | 2021 |
GNo | G2101450 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
20201 grants / $28,000
Characterization of problematic soils for encapsulated embankments$28,000
Funding body: SMEC Australia Pty Ltd
Funding body | SMEC Australia Pty Ltd |
---|---|
Project Team | Professor Olivier Buzzi, Professor Stephen Fityus, Doctor Jubert Pineda |
Scheme | Research Grant |
Role | Lead |
Funding Start | 2020 |
Funding Finish | 2022 |
GNo | G2000512 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
20196 grants / $934,515
Solving the Scale Effect for Rock Discontinuities$388,104
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Olivier Buzzi, Prof DV Griffiths, Mr Shaun Booth |
Scheme | Discovery Projects |
Role | Lead |
Funding Start | 2019 |
Funding Finish | 2021 |
GNo | G1800125 |
Type Of Funding | C1200 - Aust Competitive - ARC |
Category | 1200 |
UON | Y |
Groundwater pressures and flows within spoil dumps$330,063
Funding body: Australian Coal Research Limited
Funding body | Australian Coal Research Limited |
---|---|
Project Team | Professor Olivier Buzzi, Doctor John Simmons, Dr John Simmons, Mr Bernardo Muniz De Castro Fonseca, Professor Stephen Fityus |
Scheme | Australian Coal Association Research Program (ACARP) |
Role | Lead |
Funding Start | 2019 |
Funding Finish | 2021 |
GNo | G1900244 |
Type Of Funding | C1700 - Aust Competitive - Other |
Category | 1700 |
UON | Y |
Advanced Rock Mechanics Training Facility$75,000
Funding body: Glencore Coal Assets Australia Pty Ltd
Funding body | Glencore Coal Assets Australia Pty Ltd |
---|---|
Project Team | Professor Anna Giacomini, Professor Olivier Buzzi, Professor Stephen Fityus |
Scheme | Major Community Projects |
Role | Investigator |
Funding Start | 2019 |
Funding Finish | 2020 |
GNo | G1901193 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
PDM LTT Project – Rejects Shear Strengths Investigation$74,400
Funding body: BHP Billiton Limited
Funding body | BHP Billiton Limited |
---|---|
Project Team | Professor Stephen Fityus, Professor Olivier Buzzi |
Scheme | Research Project |
Role | Investigator |
Funding Start | 2019 |
Funding Finish | 2019 |
GNo | G1900793 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
Scoping Study for Research project into Development of old Coal mine Waste Rock Dumps$50,000
Funding body: Bloomfield Colleries Pty Ltd
Funding body | Bloomfield Colleries Pty Ltd |
---|---|
Project Team | Professor Olivier Buzzi, Associate Professor Gregory Hancock, Professor Anna Giacomini, Doctor Glen Burton, Professor Stephen Fityus |
Scheme | Research Grant |
Role | Lead |
Funding Start | 2019 |
Funding Finish | 2020 |
GNo | G1901616 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
Effect of plant roots on soil suction$16,948
Funding body: NSW Roads and Maritime Services
Funding body | NSW Roads and Maritime Services |
---|---|
Project Team | Professor Olivier Buzzi |
Scheme | Research Grant |
Role | Lead |
Funding Start | 2019 |
Funding Finish | 2019 |
GNo | G1900790 |
Type Of Funding | C2300 – Aust StateTerritoryLocal – Own Purpose |
Category | 2300 |
UON | Y |
20181 grants / $139,650
Research into Modelling the Stability of a Coal Stockpile$139,650
Funding body: Vale Mozambique, S.A.
Funding body | Vale Mozambique, S.A. |
---|---|
Project Team | Professor Olivier Buzzi, Professor Kenneth Williams, Professor Stephen Fityus |
Scheme | Research Grant |
Role | Lead |
Funding Start | 2018 |
Funding Finish | 2020 |
GNo | G1801047 |
Type Of Funding | C3400 – International For Profit |
Category | 3400 |
UON | Y |
20173 grants / $2,815,944
NEWSYD Geotechnical Testing$2,501,233
Funding body: NEWSYD Geotechnical Testing
Funding body | NEWSYD Geotechnical Testing |
---|---|
Project Team | Professor Olivier Buzzi, Lprof SCOTT Sloan, Lprof SCOTT Sloan |
Scheme | Consultancy |
Role | Lead |
Funding Start | 2017 |
Funding Finish | 2022 |
GNo | G1700510 |
Type Of Funding | Scheme excluded from IGS |
Category | EXCL |
UON | Y |
Predicting the impact of complex joint structures on mine operations$304,711
Funding body: Australian Coal Research Limited
Funding body | Australian Coal Research Limited |
---|---|
Project Team | Professor Anna Giacomini, Professor Stephen Fityus, Professor Olivier Buzzi, Dr Marc Elmouttie, Gordon Fenton |
Scheme | Australian Coal Association Research Program (ACARP) |
Role | Investigator |
Funding Start | 2017 |
Funding Finish | 2020 |
GNo | G1700873 |
Type Of Funding | C1700 - Aust Competitive - Other |
Category | 1700 |
UON | Y |
2016 Overall Vice-Chancellor’s Award for research supervision excellence$10,000
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Olivier Buzzi |
Scheme | VC's Award for Research and Innovation Excellence |
Role | Lead |
Funding Start | 2017 |
Funding Finish | 2017 |
GNo | G1700040 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20164 grants / $691,873
Fragmentation of rocks upon impact$482,753
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Olivier Buzzi, Emeritus Professor John Carter, Professor Stephen Fityus, Professor Anna Giacomini, Hungr, Oldrich |
Scheme | Discovery Projects |
Role | Lead |
Funding Start | 2016 |
Funding Finish | 2018 |
GNo | G1500142 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
Prediction of shear strength of rock joints$96,000
Funding body: Pells Sullivan Meynink
Funding body | Pells Sullivan Meynink |
---|---|
Project Team | Professor Olivier Buzzi, Professor Anna Giacomini, Mr Clarence Butcher |
Scheme | Research Grant |
Role | Lead |
Funding Start | 2016 |
Funding Finish | 2019 |
GNo | G1600335 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
Numerical Modelling of Drapery Systems$93,120
Funding body: Geobrugg AG
Funding body | Geobrugg AG |
---|---|
Project Team | Professor Anna Giacomini, Professor Olivier Buzzi, Mrs Soheil Tahmasbi |
Scheme | Research Grant |
Role | Investigator |
Funding Start | 2016 |
Funding Finish | 2018 |
GNo | G1600138 |
Type Of Funding | C3400 – International For Profit |
Category | 3400 |
UON | Y |
National Rock, Concrete and Advanced Composite Testing Capability$20,000
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor David Williams, Dr Abdelmalek Bouazza, Professor Adrian Mouritz, Professor Ernesto Villaescusa, Professor Mark Cassidy, Professor Olivier Buzzi, Associate Professor Adrian Russell, Associate Professor Muhammad Hadi, Dr Ivan Gratchev, Dr Abbas Taheri, Fernando, Dr Nangallage, Gratchev, Dr Ivan, Hadi, A/Prof Muhammad, Heitzmann, Dr Michael, Martin, Porf Darren, Mouritz, Porf Adrian, Taheri, Dr Abbas, Villaescusa, Prof Emesto, Wang, Prof Chun |
Scheme | Equipment Grant |
Role | Lead |
Funding Start | 2016 |
Funding Finish | 2016 |
GNo | G1500614 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20141 grants / $4,500
Numerical investigation of the performance of low energy rockfall barriers $4,500
Funding body: University of Newcastle - Faculty of Engineering & Built Environment
Funding body | University of Newcastle - Faculty of Engineering & Built Environment |
---|---|
Project Team | Professor Anna Giacomini, Professor Olivier Buzzi |
Scheme | Pilot Grant |
Role | Investigator |
Funding Start | 2014 |
Funding Finish | 2014 |
GNo | G1400972 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20123 grants / $75,591
Application of the brittle failure criterion to coal$59,091
Funding body: Seedsman Geotechnics Pty Limited
Funding body | Seedsman Geotechnics Pty Limited |
---|---|
Project Team | Professor Olivier Buzzi, Professor Anna Giacomini |
Scheme | Research Grant |
Role | Lead |
Funding Start | 2012 |
Funding Finish | 2016 |
GNo | G1200382 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
2011 Emerging Researcher's Program$15,000
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Olivier Buzzi |
Scheme | Emerging Research Leaders Program |
Role | Lead |
Funding Start | 2012 |
Funding Finish | 2012 |
GNo | G1200048 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
2nd European Conference on Unsaturated Soils, Naples, Italy, 20 - 22 June 2012$1,500
Funding body: University of Newcastle - Faculty of Engineering & Built Environment
Funding body | University of Newcastle - Faculty of Engineering & Built Environment |
---|---|
Project Team | Professor Olivier Buzzi |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2012 |
Funding Finish | 2013 |
GNo | G1200570 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20114 grants / $18,571,321
ARC Centre of Excellence for Geotechnical Science and Engineering$17,266,469
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Lprof SCOTT Sloan, Professor Mark Cassidy, Professor Mark Randolph, Emeritus Professor John Carter, Prof DAICHAO Sheng, Professor Buddhima Indraratna, Professor David White, Prof ANDREI Lyamin, Professor Christophe Gaudin, Dr Richard Merifield, Mr Harry Poulos, Prof DV Griffiths, Professor Shanyong Wang, Professor Olivier Buzzi, Dr Cholachat Rujikiatkamjorn |
Scheme | ARC Centres of Excellence |
Role | Investigator |
Funding Start | 2011 |
Funding Finish | 2017 |
GNo | G0900169 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
Long term stabilisation of expansive soils by polymer addition$604,852
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Olivier Buzzi, Lprof SCOTT Sloan |
Scheme | Discovery Projects |
Role | Lead |
Funding Start | 2011 |
Funding Finish | 2013 |
GNo | G1000188 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
ARC Centre of Excellence for Geotechnical Science and Engineering$350,000
Funding body: Coffey Geotechnics
Funding body | Coffey Geotechnics |
---|---|
Project Team | Professor Olivier Buzzi, Professor Mark Cassidy, Professor Mark Randolph, Emeritus Professor John Carter, Prof DAICHAO Sheng, Professor Buddhima Indraratna, Professor David White, Prof ANDREI Lyamin, Professor Christophe Gaudin, Dr Richard Merifield, Mr Harry Poulos, Prof DV Griffiths, Lprof SCOTT Sloan |
Scheme | ARC Centres of Excellence Partner Funding |
Role | Investigator |
Funding Start | 2011 |
Funding Finish | 2017 |
GNo | G1200004 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
ARC Centre of Excellence for Geotechnical Science and Engineering$350,000
Funding body: Douglas Partners
Funding body | Douglas Partners |
---|---|
Project Team | Professor Olivier Buzzi, Professor Mark Cassidy, Professor Mark Randolph, Emeritus Professor John Carter, Prof DAICHAO Sheng, Professor Buddhima Indraratna, Professor David White, Prof ANDREI Lyamin, Professor Christophe Gaudin, Dr Richard Merifield, Mr Harry Poulos, Prof DV Griffiths, Lprof SCOTT Sloan |
Scheme | ARC Centres of Excellence Partner Funding |
Role | Investigator |
Funding Start | 2011 |
Funding Finish | 2017 |
GNo | G1200005 |
Type Of Funding | C3100 – Aust For Profit |
Category | 3100 |
UON | Y |
20103 grants / $1,084,140
Combined strategies to extinguish underground coal fires and to extract geothermal energy$486,860
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Olivier Buzzi, Lprof SCOTT Sloan, Professor Stephen Fityus, Emeritus Professor Terry Wall |
Scheme | Linkage Projects |
Role | Lead |
Funding Start | 2010 |
Funding Finish | 2013 |
GNo | G0900127 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
Microstructure-Based Computational Homogenization of Geomaterials$460,000
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Prof ANDREI Lyamin, Professor Olivier Buzzi |
Scheme | Discovery Projects |
Role | Investigator |
Funding Start | 2010 |
Funding Finish | 2012 |
GNo | G0190033 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
Combined strategies to extinguish underground coal fires and to extract geothermal energy$137,280
Funding body: Near Surface Geothermal Energy Pty Ltd
Funding body | Near Surface Geothermal Energy Pty Ltd |
---|---|
Project Team | Professor Olivier Buzzi, Lprof SCOTT Sloan, Professor Stephen Fityus, Emeritus Professor Terry Wall |
Scheme | Linkage Projects Partner Funding |
Role | Lead |
Funding Start | 2010 |
Funding Finish | 2012 |
GNo | G0900201 |
Type Of Funding | Grant - Aust Non Government |
Category | 3AFG |
UON | Y |
20096 grants / $1,517,047
Electron Microscopes for Nanometer-scale Imaging/Microanalysis in the Materials, Biological, Physical, Engineering and Chemical Sciences$650,000
Funding body: ARC (Australian Research Council)
Barriers for cost-effective rock fall hazard mitigation$547,047
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Stephen Fityus, Lprof SCOTT Sloan, Emeritus Professor John Carter, Professor Olivier Buzzi, Professor Gian Paolo Giani, Mr Hendrik Buys |
Scheme | Linkage Projects |
Role | Investigator |
Funding Start | 2009 |
Funding Finish | 2011 |
GNo | G0189165 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
Barriers for cost-effective rock fall hazard mitigation$200,000
Funding body: Roads and Traffic Authority
Funding body | Roads and Traffic Authority |
---|---|
Project Team | Professor Stephen Fityus, Lprof SCOTT Sloan, Emeritus Professor John Carter, Professor Olivier Buzzi, Professor Gian Paolo Giani, Mr Hendrik Buys, Professor Anna Giacomini |
Scheme | Linkage Projects Partner Funding |
Role | Investigator |
Funding Start | 2009 |
Funding Finish | 2011 |
GNo | G0189598 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
Electron Microscopes for Nanometer-scale Imaging/Microanalysis in the Materials, Biological, Physical, Engineering and Chemical Sciences$70,000
Funding body: ARC (Australian Research Council)
Use of screws piers and soil scarification to reduce the swelling pressure of expansive soils$30,000
Funding body: Heltech Industries
Funding body | Heltech Industries |
---|---|
Project Team | Professor Stephen Fityus, Professor Olivier Buzzi |
Scheme | Project Grant |
Role | Investigator |
Funding Start | 2009 |
Funding Finish | 2009 |
GNo | G0189956 |
Type Of Funding | Grant - Aust Non Government |
Category | 3AFG |
UON | Y |
Computational Homogenization of Geomaterials Using X-ray Microtomography$20,000
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Associate Professor Kristian Krabbenhoft, Prof ANDREI Lyamin, Professor Olivier Buzzi |
Scheme | Near Miss Grant |
Role | Investigator |
Funding Start | 2009 |
Funding Finish | 2009 |
GNo | G0189830 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20083 grants / $12,200
New Staff Grant 2008$7,500
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Olivier Buzzi |
Scheme | New Staff Grant |
Role | Lead |
Funding Start | 2008 |
Funding Finish | 2008 |
GNo | G0188486 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
Development of advanced geotechnical experimental equipment and preliminary mineralogical inverstigations on expansive soils$3,000
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Olivier Buzzi |
Scheme | Early Career Researcher Grant |
Role | Lead |
Funding Start | 2008 |
Funding Finish | 2008 |
GNo | G0188601 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
IACMAG, GOA, INDIA, 1/10/2008 - 6/10/2008$1,700
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Olivier Buzzi |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2008 |
Funding Finish | 2008 |
GNo | G0188625 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20071 grants / $1,700
NUMOG X$1,700
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Olivier Buzzi |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2007 |
Funding Finish | 2007 |
GNo | G0187629 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
Research Supervision
Number of supervisions
Current Supervision
Commenced | Level of Study | Research Title | Program | Supervisor Type |
---|---|---|---|---|
2021 | PhD | Joint Inversion for Geotechnical Site Investigations | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Co-Supervisor |
2021 | PhD | Application of the STADSS to Large in Situ Rocks Discontinuities, Developments and Validation. | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2021 | PhD | Understanding Horizontal Closure and its Impact on Deformation and Height of Fracture | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Co-Supervisor |
Past Supervision
Year | Level of Study | Research Title | Program | Supervisor Type |
---|---|---|---|---|
2023 | Masters | Design and Validation of a Large Scale Permeameter for Mine Waste Rocks, and Preliminary Characterisation of Hydraulic Conductivity | M Philosophy (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2022 | PhD | A Preliminary Large Scale Validation of the Stochastic Approach for Discontinuity Shear Strength | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2022 | PhD | Water Retention Properties of Engineered Soils for Mine Rehabilitation | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2021 | PhD | An Experimental Investigation of Fragmentation Occurrence and Outcome in the Context of Rockfall | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Co-Supervisor |
2020 | PhD | Hydro-mechanical Modelling of Multiphase Flow in Naturally Fractured Coalbeds Applied to CBM Recovery or CO2 Storage | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2020 | PhD | Finite Element Modelling of Chain-link Drapery Rockfall Protection | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2020 | PhD | A methodological approach for the performance optimization of transient seepage models through inverse analysis | Civil Engineering, University of Bologna | Co-Supervisor |
2019 | PhD | The Deployment of Thermosyphons to Extract Heat from Burning Coal Mine Waste | PhD (Environmental Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2018 | PhD | A Stochastic Approach for the Shear Strength of Rock Discontinuities | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2017 | PhD | Multi-scale Study of the Hydro-mechanical Behaviour of Maryland Clay | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2015 | PhD | Environmental Salinity and Bitumen-Sealed Unbound Granular Road Pavements | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Co-Supervisor |
2013 | PhD | Experimental and Numerical Investigations on Barriers for Rockfall Hazard Mitigation | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2011 | PhD | Experimental and Numerical Studies of Diffusion in Geomaterials | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2008 | Masters | Characterisation of Expanded Polymer Resin and Expansive Soil Composites | M Philosophy (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Co-Supervisor |
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Professor Olivier Buzzi
Position
Professor
School of Engineering
College of Engineering, Science and Environment
Focus area
Civil Engineering
Contact Details
olivier.buzzi@newcastle.edu.au | |
Phone | (02) 4921 5454 |
Office
Room | EA 209 |
---|---|
Building | Engineering A |
Location | Callaghan University Drive Callaghan, NSW 2308 Australia |