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Dr Olivier Buzzi

Associate Professor

School of Engineering (Civil Engineering)

Geotech Expert Tackles Soil Behaviour

Dr Olivier Buzzi's research interests are in rock mechanics, rock joints, expansive soils and unsaturated soil mechanics.

Dr Olivier BuzziOlivier is 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.

Dr Olivier Buzzi

Geotech Expert Tackles Soil Behaviour

Dr Olivier Buzzi's research interests are in rock mechanics, rock joints, expansive soils and unsaturated soil mechanics.

Read more

Career Summary

Biography

Ecole Normale Superieure de Cachan from 1997 to 2000

Agregation Genie Civil in 2000 (ranked 2nd nationally)

Master Research on Rock Joints, University Joseph Fourier, 2001

PhD, University Joseph Fourier, Laboratoire 3S-R, 2001-2004

Joined Newcastle in 2005 for a Post Doctorla position to work on The Uretek Solution in expansive soils

Became Lecturer in 2007, Senior Lecturer in 2009 and Associate Professor in 2012.

Research Expertise
Experimental research on Expansive Soils, Unsaturated Soils, Rock mechanics, Rockfall.

Teaching Expertise
I am currently teaching CIVL2720 Transportation Engineering and Design (2nd year course) and CIVL4571 Geotechnical Engineering Design (4th year course). In the past, I have taught Technical Drawing, Solid mechanics, Materials and Construction planning.

Administrative Expertise
I am the Student Academic Conduct Officer for the School of Enginering.

Collaborations
National and International.


Qualifications

  • PhD (Civil Engineering), Universite Grenoble1-Universite Joseph Fourier

Keywords

  • Expansive soils
  • Geotechnical Engineering Design
  • Rock Fall
  • Rock Joints
  • Transportation engineering
  • Unsaturated soils

Languages

  • French (Fluent)
  • Italian (Fluent)

Fields of Research

Code Description Percentage
090599 Civil Engineering not elsewhere classified 90
091499 Resources Engineering and Extractive Metallurgy not elsewhere classified 5
091599 Interdisciplinary Engineering not elsewhere classified 5

Professional Experience

UON Appointment

Title Organisation / Department
Associate Professor University of Newcastle
School of Engineering
Australia

Academic appointment

Dates Title Organisation / Department
1/01/2013 -  Editorial Board Rock Mechanics and Rock Engineering
Australia
1/01/2011 -  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
1/09/2004 - 1/08/2005 ATER University Joseph Fourier, Grenoble
UFR DE MECANIQUE
France
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Journal article (36 outputs)

Year Citation Altmetrics Link
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)

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.

DOI 10.1007/s00603-014-0640-7
Co-authors Anna Giacomini
2015 Liu XF, de Carteret R, Buzzi OP, Fityus SG, 'Microstructural effects of environmental salinity on unbound granular road pavement material upon drying', Acta Geotechnica, (2015)

Areas of high environmental salinity are predicted to increase over the next 40 years in Australia, due to land use and climatic changes. This presents a risk to road assets as ac... [more]

Areas of high environmental salinity are predicted to increase over the next 40 years in Australia, due to land use and climatic changes. This presents a risk to road assets as accumulation of salts within roads has been found to cause damage to thin bituminous surfacings. It is in this context that the present study explores the microstructural changes caused by environmental salt crystals accumulating within unbound granular road pavements. Fine-grained specimens were prepared by static compaction, immersed in different solutions, and finally either freeze-dried or oven-dried at 40 °C. The effects of different drying procedures and salinity on soil¿s microstructure were explored via mercury intrusion porosimetry and scanning electron microscope observation. Results suggest that a freeze-drying process can significantly modify the microstructure, which should be taken into account when conducting any microstructural analysis on high-salinity soil specimens.

DOI 10.1007/s11440-015-0393-9
Co-authors Xianfeng Liu
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).

DOI 10.1520/GTJ20130091
Co-authors Xianfeng Liu
2014 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, (2014)
DOI 10.1007/s00603-014-0640-7
Co-authors Anna Giacomini
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]
DOI 10.1007/s00603-013-0493-5
Citations Scopus - 1Web of Science - 1
Co-authors Xianfeng Liu, Anna Giacomini
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]
DOI 10.1061/(ASCE)MT.1943-5533.0000938
Co-authors Xianfeng Liu, Stephen Fityus
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.

DOI 10.1139/cgj-2012-0393
Citations Scopus - 2
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]
DOI 10.1016/j.enggeo.2013.03.007
Citations Scopus - 2Web of Science - 2
Co-authors Stephen Fityus, Scott Sloan, Anna Giacomini
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.

DOI 10.1016/j.enggeo.2013.05.007
Citations Scopus - 3Web of Science - 2
Co-authors Anna Giacomini, Stephen Fityus
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]
DOI 10.1520/GTJ20120048
Co-authors Stephen Fityus
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]
DOI 10.1007/s00603-012-0343-x
Citations Scopus - 3Web of Science - 3
Co-authors Scott Sloan, James Hambleton, Anna Giacomini
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]
DOI 10.1007/s00603-012-0295-1
Citations Scopus - 6Web of Science - 7
Co-authors Anna Giacomini, Scott Sloan, Stephen Fityus
2012 Russell AR, Buzzi OP, 'A fractal basis for soil-water characteristics curves with hydraulic hysteresis', Geotechnique, 62 269-274 (2012) [C1]
Citations Scopus - 13Web of Science - 11
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]
Citations Scopus - 11Web of Science - 8
Co-authors Anna Giacomini
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]
Citations Scopus - 14Web of Science - 9
Co-authors Anna Giacomini, James Hambleton
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]
Co-authors Xianfeng Liu, Scott Sloan
2012 Buzzi OP, Grimes SB, Rolls AC, 'Writing for the discipline in the discipline?', Teaching in Higher Education, 17 479-484 (2012) [C1]
Citations Scopus - 3
Co-authors Alistair Rolls
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]
Citations Scopus - 12Web of Science - 8
Co-authors Anna Giacomini, Stephen Fityus
2011 Buzzi OP, Giacomini A, Fityus SG, 'Towards a dimensionless description of soil swelling behaviour', Geotechnique, 61 271-277 (2011) [C1]
DOI 10.1680/geot.7.00194
Citations Scopus - 2Web of Science - 2
Co-authors Stephen Fityus, Anna Giacomini
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]
DOI 10.1139/T09-132
Citations Scopus - 9Web of Science - 1
Co-authors Stephen Fityus, Scott Sloan
2010 Buzzi OP, 'On the use of dimensional analysis to predict swelling strain', Engineering Geology, 116 149-156 (2010) [C1]
DOI 10.1016/j.enggeo.2010.08.005
Citations Scopus - 2Web of Science - 1
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]
DOI 10.1016/j.compgeo.2009.09.006
Citations Scopus - 9Web of Science - 5
Co-authors Anna Giacomini
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]
DOI 10.1016/j.clay.2008.08.005
Citations Scopus - 22Web of Science - 15
Co-authors Stephen Fityus
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]
DOI 10.1016/j.compgeo.2009.05.006
Citations Scopus - 39Web of Science - 26
Co-authors Stephen Fityus
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]
DOI 10.4028/www.scientific.net/ddf.283-286.504
Citations Scopus - 1Web of Science - 1
Co-authors Andrei Lyamin, Scott Sloan, Kristian Krabbenhoft
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]
DOI 10.1615/JPorMedia.v12.i3.80
Co-authors Andrei Lyamin, Kristian Krabbenhoft
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]
DOI 10.1016/j.ijrmms.2008.09.007
Citations Scopus - 17Web of Science - 12
Co-authors Anna Giacomini
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]
DOI 10.1016/j.ijrmms.2007.04.007
Citations Scopus - 24Web of Science - 12
Co-authors Anna Giacomini
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]
Citations Scopus - 7Web of Science - 4
Co-authors Anna Giacomini
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]
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]
DOI 10.1016/j.mechmat.2008.07.002
Citations Scopus - 14Web of Science - 8
Co-authors Scott Sloan, Stephen Fityus
2008 Buzzi OP, Boulon M, Herve M, Su K, 'Leaching of rock-concrete interfaces', Rock Mechanics and Rock Engineering, 41 445-466 (2008) [C1]
DOI 10.1007/s00603-007-0156-5
Citations Scopus - 3Web of Science - 4
2008 Buzzi O, Boulon M, Deleruyelle F, Besnus F, 'Hydromechanical behaviour of rock-bentonite interfaces under compression', Rock Mechanics and Rock Engineering, 41 343-371 (2008) [C1]
DOI 10.1007/s00603-006-0099-2
Citations Scopus - 7Web of Science - 6
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]
Citations Scopus - 3
Co-authors Stephen Fityus
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.

DOI 10.1016/j.pce.2006.03.010
Citations Scopus - 5
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]
DOI 10.1016/S0267-7261(03)00063-0
Show 33 more journal articles

Conference (34 outputs)

Year Citation Altmetrics Link
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]
DOI 10.1201/b17034-134
Citations Web of Science - 1
Co-authors Xianfeng Liu
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.

Co-authors Stephen Fityus
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]
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]
Co-authors Scott Sloan, Xianfeng Liu
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]
Co-authors Stephen Fityus
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]
Co-authors Stephen Fityus, Anna Giacomini
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]
Co-authors Scott Sloan, James Hambleton, Anna Giacomini
2012 Liu X, Buzzi OP, 'Experimental characterization of shrinkage behaviour of Australian expansive soils', Unsaturated Soils: Research and Applications, Napoli, Italy (2012) [E1]
Co-authors Xianfeng Liu
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]
Citations Scopus - 2
Co-authors Stephen Fityus, Anna Giacomini
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]
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]
Co-authors Stephen Fityus
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]
Co-authors Stephen Fityus
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]
Co-authors Stephen Fityus, Anna Giacomini
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]
Co-authors Anna Giacomini, Stephen Fityus
2010 Buzzi OP, Fityus SG, Sheng D, 'Conference editors', Unsaturated Soils: Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils, Newcastle, NSW (2010) [E4]
Co-authors Stephen Fityus, Daichao Sheng
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]
Co-authors Stephen Fityus
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]
Citations Scopus - 1
Co-authors Stephen Fityus, Anna Giacomini
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]
Co-authors Stephen Fityus
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]
Co-authors Scott Sloan, Stephen Fityus
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]
Co-authors Stephen Fityus
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]
Co-authors Anna Giacomini
2008 Lambert C, Buzzi O, Giacomini A, 'Modelling the behaviour of a leached interface', -, Venice, Italy (2008) [E1]
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]
Co-authors Scott Sloan, Kristian Krabbenhoft, Andrei Lyamin
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]
Co-authors Stephen Fityus, Anna Giacomini
2008 Krabbenhoft K, Karim MR, Altarawneh KK, Buzzi O, Lyamin AV, 'Virtual testing and computational homogenization of geomaterials', Venice, Italy (2008) [E4]
2008 Buzzi O, Giacomini A, Fityus S, 'A dimensionless model for soil swelling behaviour', Goa, India (2008) [E4]
Co-authors Anna Giacomini, Stephen Fityus
2008 Giacomini A, Buzzi O, Krabbenhoft K, 'Modelling the asperity degradation of a sheared rock joint using FEM.', Venice, Italy (2008) [E4]
Co-authors Anna Giacomini
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]
Co-authors Stephen Fityus
2008 Lambert C, Buzzi OP, Giacomini A, 'Modelling the mechanical behaviour of leached interface', WCCM8, ECCOMAS 2008, Venice, Italy (2008) [E3]
Co-authors Anna Giacomini
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]
Co-authors Anna Giacomini, Kristian Krabbenhoft
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]
Co-authors Andrei Lyamin, Kristian Krabbenhoft
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]
Co-authors Stephen Fityus
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]
Citations Scopus - 3Web of Science - 1
Co-authors Stephen Fityus, Scott Sloan
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]
Co-authors Stephen Fityus
Show 31 more conferences
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Grants and Funding

Summary

Number of grants 22
Total funding $18,298,819

Click on a grant title below to expand the full details for that specific grant.


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 Doctor Anna Giacomini, Doctor 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 / $55,136

Application of the brittle failure criterion to coal$38,636

Funding body: Seedsman Geotechnics Pty Limited

Funding body Seedsman Geotechnics Pty Limited
Project Team Doctor Anna Giacomini, Doctor Olivier Buzzi
Scheme Research Grant
Role Investigator
Funding Start 2012
Funding Finish 2012
GNo G1200382
Type Of Funding Grant - Aust Non Government
Category 3AFG
UON Y

2011 Emerging Researcher's Program$15,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Doctor 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 Doctor Olivier Buzzi
Scheme Travel Grant
Role Lead
Funding Start 2012
Funding Finish 2012
GNo G1200570
Type Of Funding Internal
Category INTE
UON Y

20114 grants / $15,675,000

ARC Centre of Excellence for Geotechnical Science and Engineering$14,400,000

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Laureate Professor Scott Sloan, Professor Mark Cassidy, Professor Mark Randolph, Emeritus Professor John Carter, Professor Daichao Sheng, Professor Buddhima Indraratna, Professor David White, Associate Professor Kristian Krabbenhoft, Professor Andrei Lyamin, Professor Christophe Gaudin, Dr Richard Merifield, Mr Harry Poulos, Professor D Griffiths, Associate Professor Shanyong Wang, Doctor Olivier Buzzi
Scheme ARC Centres of Excellence
Role Investigator
Funding Start 2011
Funding Finish 2011
GNo G0900169
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON Y

Long term stabilisation of expansive soils by polymer addition$575,000

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Doctor Olivier Buzzi, Laureate Professor Scott Sloan
Scheme Discovery Projects
Role Lead
Funding Start 2011
Funding Finish 2011
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 Laureate Professor Scott Sloan, Professor Mark Cassidy, Professor Mark Randolph, Emeritus Professor John Carter, Professor Daichao Sheng, Professor Buddhima Indraratna, Professor David White, Associate Professor Kristian Krabbenhoft, Professor Andrei Lyamin, Professor Christophe Gaudin, Dr Richard Merifield, Mr Harry Poulos, Professor D Griffiths, Doctor Olivier Buzzi
Scheme CoE Partner funding
Role Investigator
Funding Start 2011
Funding Finish 2011
GNo G1200004
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON Y

ARC Centre of Excellence for Geotechnical Science and Engineering$350,000

Funding body: Douglas Partners

Funding body Douglas Partners
Project Team Laureate Professor Scott Sloan, Professor Mark Cassidy, Professor Mark Randolph, Emeritus Professor John Carter, Professor Daichao Sheng, Professor Buddhima Indraratna, Professor David White, Associate Professor Kristian Krabbenhoft, Professor Andrei Lyamin, Professor Christophe Gaudin, Dr Richard Merifield, Mr Harry Poulos, Professor D Griffiths, Doctor Olivier Buzzi
Scheme CoE Partner funding
Role Investigator
Funding Start 2011
Funding Finish 2011
GNo G1200005
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON Y

20103 grants / $1,057,280

Microstructure-Based Computational Homogenization of Geomaterials$460,000

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Professor Andrei Lyamin, Doctor Olivier Buzzi
Scheme Discovery Projects
Role Investigator
Funding Start 2010
Funding Finish 2010
GNo G0190033
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON Y

Combined strategies to extinguish underground coal fires and to extract geothermal energy$460,000

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Doctor Olivier Buzzi, Laureate Professor Scott Sloan, Professor Stephen Fityus, Emeritus Professor Terry Wall
Scheme Linkage Projects
Role Lead
Funding Start 2010
Funding Finish 2010
GNo G0900127
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 Doctor Olivier Buzzi, Laureate Professor Scott Sloan, Professor Stephen Fityus, Emeritus Professor Terry Wall
Scheme Linkage Projects Partner funding
Role Lead
Funding Start 2010
Funding Finish 2010
GNo G0900201
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON Y

20097 grants / $1,493,003

Barriers for cost-effective rock fall hazard mitigation$520,000

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Professor Stephen Fityus, Laureate Professor Scott Sloan, Emeritus Professor John Carter, Doctor Olivier Buzzi, Professor Gian Paolo Giani, Mr Hendrik Buys
Scheme Linkage Projects
Role Investigator
Funding Start 2009
Funding Finish 2009
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, Laureate Professor Scott Sloan, Emeritus Professor John Carter, Doctor Olivier Buzzi, Professor Gian Paolo Giani, Mr Hendrik Buys, Doctor Anna Giacomini
Scheme Linkage Projects Partner funding
Role Investigator
Funding Start 2009
Funding Finish 2009
GNo G0189598
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON Y

Use of screws piers and soil scarification to reduce the swelling pressure of expansive soils$33,000

Funding body: Heltech Industries

Funding body Heltech Industries
Project Team Professor Stephen Fityus, Doctor 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, Professor Andrei Lyamin, Doctor Olivier Buzzi
Scheme Near Miss Grant
Role Investigator
Funding Start 2009
Funding Finish 2009
GNo G0189830
Type Of Funding Internal
Category INTE
UON Y

Barriers for cost-effective rock fall hazard mitigation$3

Funding body: RailCorp

Funding body RailCorp
Project Team Professor Stephen Fityus, Laureate Professor Scott Sloan, Emeritus Professor John Carter, Doctor Olivier Buzzi, Professor Gian Paolo Giani, Mr Hendrik Buys, Doctor Anna Giacomini
Scheme Linkage Projects Partner funding
Role Investigator
Funding Start 2009
Funding Finish 2009
GNo G0189599
Type Of Funding Other Public Sector - State
Category 2OPS
UON Y

20083 grants / $12,200

New Staff Grant 2008$7,500

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Doctor 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 Doctor 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 Doctor 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 Doctor Olivier Buzzi
Scheme Travel Grant
Role Lead
Funding Start 2007
Funding Finish 2007
GNo G0187629
Type Of Funding Internal
Category INTE
UON Y
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Research Supervision

Number of supervisions

Completed2
Current8

Total current UON EFTSL

PhD2.4

Current Supervision

Commenced Level of Study Research Title / Program / Supervisor Type
2015 PhD Investigation of the Shear Strength of Materials with Large Particle Size which cannot be tested using Conventional Sized Laboratory Equipment.
Civil Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Co-Supervisor
2013 PhD A Stochastic Approach for the Shear Strength of Rock Discontinuities
Civil Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Principal Supervisor
2013 PhD Microstructural Changes of Expansive Soils upon Swelling and its Effect on Permeability
Civil Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Principal Supervisor
2013 PhD Prediction of Shear Strength of Discontinuities
Civil Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Co-Supervisor
2013 PhD TBC
Environmental Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Principal Supervisor
2011 PhD Environmental Salinity and Bitumen-Sealed Unbound Granular Road Pavements
Civil Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Co-Supervisor
2007 Masters Diffusion of chloride ions in Geomaterials
Geotechnical Engineering, University of Newcastle
Co-Supervisor
2006 Masters Foundation remediation usogn expansive polyurethane resin
Geotechnical Engineering, University of Newcastle
Co-Supervisor

Past Supervision

Year Level of Study Research Title / Program / Supervisor Type
2013 PhD Experimental and Numerical Investigations on Barriers for Rockfall Hazard Mitigation
Civil Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Principal Supervisor
2011 PhD Experimental and Numerical Studies of Diffusion in Geomaterials
Civil Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Principal Supervisor
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Dr Olivier Buzzi

Position

Associate Professor
School of Engineering
Faculty of Engineering and Built Environment

Focus area

Civil Engineering

Contact Details

Email olivier.buzzi@newcastle.edu.au
Phone (02) 4921 5454

Office

Room EA 209
Building Engineering A
Location Callaghan
University Drive
Callaghan, NSW 2308
Australia
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