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Dr Klaus Thoeni

Research Associate

School of Engineering (Civil Engineering)

Career Summary

Biography

Klaus Thoeni holds a Ph.D. and a M.S. degree in Civil Engineering of Graz University of Technology in Austria and has been working with advanced numerical methods (BEM, FEM, DEM) and their application to underground excavations, rock mechanics and structural analysis for more than 6 years. In July 2010, he moved to Australia and took a position as research associate at the University of Newcastle. Since then, he has been mainly working on ACARP projects including "Improved Management of the Rock Fall Hazard at the Base of Highwalls" and "Energy absorption capacity of muck piles and their status as engineered hard barriers".

He has also joined the development team of the open-source software YADE ( http://yade-dem.org/doc ), which is an efficient numerical tool for simulating the dynamic behaviour of geomaterials by using the Discrete Element Method. Prior to this, he was a research associate at the Institute for Structural Analysis at Graz University of Technology where he focussed on the European project SeRoN ( http://www.seron-project.eu ). He was strongly involved in the initial stage of the project the identification and classification of critical infrastructures (D100, D200).

He obtained his Ph.D. in Civil Engineering in September 2009. During his Ph.D., he worked as a full time research and teaching assistant at the same institution. As a teaching assistant, he taught structural analysis (statics and dynamics of structures) and numerical methods (FEM, BEM) and he supervised several bachelor and master projects. As a researcher, he was strongly involved in the integrated European project http://www.tunconstruct.org" target="_blank">TunConstruct and the application of the Boundary Element Method to anisotropic material, piezoelectricity and non-linear problems. He was in the development team of the research software http://www.befepp.com" target="_blank">BEFE++, which is a new generation numerical analysis tool for underground excavations.

Research Expertise
Dr Thoeni's areas of expertise are in numerical methods (BEM, DEM, FEM) and their application in structural analysis, rock mechanics and coal mining. He has extensive knowledge in the analysis of tunnelling and underground excavation problems with the Boundary Element Method and Finite Element Method (including the coupling of the methods) and in the simulation of rock fall protection systems with the Discrete Element Method. Other areas of general interest are stereo photogrammetry, programming, parallel processing and open source software (Linux).

Teaching Expertise
Dr Thoeni was strongly involved in teaching structural analysis (statics and dynamics of structures) and numerical methods (FEM, BEM) at the Institute for Structural Analysis at Graz University of Technology, where he supervised several bachelor and master projects.

Administrative Expertise
Dr Thoeni was second deputy head of the Institute for Structural Analysis at Graz University of Technology. He was computer and network administrator and fire warden.


Qualifications

  • Doctor of Technology, Graz University of Technology, Austria

Keywords

  • 3D Modelling
  • BEM
  • Coal Mining
  • Computer programming
  • Coupling of Numerical Methods
  • DEM
  • FEM
  • Nonlinear Boundary Element Analysis
  • Numerical modelling
  • Photogrammetry
  • Rock Mechanics
  • Rockfall analysis
  • Structural analysis
  • Structure from motion

Languages

  • English (Fluent)
  • German (Fluent)
  • Portuguese (Fluent)
  • Italian (Fluent)

Fields of Research

CodeDescriptionPercentage
010299Applied Mathematics not elsewhere classified20
090599Civil Engineering not elsewhere classified70
160899Sociology not elsewhere classified10

Professional Experience

UON Appointment

DatesTitleOrganisation / Department
11/05/2015 - 28/02/2017Research AssociateUniversity of Newcastle
School of Engineering
Australia
3/12/2011 - 4/12/2011Casual AcademicUniversity of Newcastle
School of Engineering
Australia
25/08/2011 - 25/11/2011Research AssociateUniversity of Newcastle
School of Engineering
Australia

Academic appointment

DatesTitleOrganisation / Department
1/03/2010 - 1/07/2010PostDocGraz University of Technology, Austria
Institute for Structural Analysis
Austria
1/01/2010 - Research FellowshipSIMNET
Austria
1/01/2006 - ELBENet Research Fellowship
Europe Latin-America Boundary Element NETwork/Alfa Program
European Union
Austria
1/03/2005 - 1/02/2010Research AssistantGraz University of Technology, Austria
Institute for Structural Analysis
Austria
1/01/2005 - Membership - Ordine Ingegneri della Provincia di BolzanoOrdine Ingegneri della Provincia di Bolzano (Order of Engineers of the Province of Bolzano)
Italy

Awards

Honours

YearAward
2003Amann Award
Unknown

Recognition

YearAward
2014Excellent Paper Award to Juniors
Unknown
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Publications

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


Book (1 outputs)

YearCitationAltmetricsLink
2009Thoeni K, The Boundary Element Method for Non-Linear Problems: A Novel Approach for an Error-Controlled Adaptive Analysis, Verlag der Technischen Universitat Graz, Graz, Austria, 211 (2009) [A1]

Chapter (3 outputs)

YearCitationAltmetricsLink
2015Thoeni K, Giacomini A, Lambert C, Sloan S, 'Rockfall modelling with drapery systems', Engineering Geology for Society and Territory - Volume 2, Springer, Heidelberg 2007-2011 (2015)
DOI10.1007/978-3-319-09057-3_356
Co-authorsScott Sloan, Anna Giacomini
2015Fityus S, Giacomini A, Thoeni K, 'The Influence of Shape on the Inherent Rolling Potential of Loose Rocks', Engineering Geology for Society and Territory - Volume 2, Springer, Heidelberg 2045-2048 (2015)
DOI10.1007/978-3-319-09057-3_364
Co-authorsStephen Fityus, Anna Giacomini
2010Beer G, Duenser C, Riederer K, Carvalho Dos Prazeres PG, Thoeni K, Zechner J, Stettner M, 'Chapter 7: Computer Simulation of Conventional Construction', Technology Innovation in Underground Construction, CRC Press, Boca Raton, Florida, United States of America 129-161 (2010) [B1]

Journal article (10 outputs)

YearCitationAltmetricsLink
2015Dall Asta E, Thoeni K, Santise M, Forlani G, Giacomini A, Roncella R, 'Network design and quality checks in automatic orientation of close-range photogrammetric blocks', Sensors (Switzerland), 15 7985-8008 (2015)

Due to the recent improvements of automatic measurement procedures in photogrammetry, multi-view 3D reconstruction technologies are becoming a favourite survey tool. Rapidly widening structure-from-motion (SfM) software packages offer significantly easier image processing workflows than traditional photogrammetry packages. However, while most orientation and surface reconstruction strategies will almost always succeed in any given task, estimating the quality of the result is, to some extent, still an open issue. An assessment of the precision and reliability of block orientation is necessary and should be included in every processing pipeline. Such a need was clearly felt from the results of close-range photogrammetric surveys of in situ full-scale and laboratory-scale experiments. In order to study the impact of the block control and the camera network design on the block orientation accuracy, a series of Monte Carlo simulations was performed. Two image block configurations were investigated: a single pseudo-normal strip and a circular highly-convergent block. The influence of surveying and data processing choices, such as the number and accuracy of the ground control points, autofocus and camera calibration was investigated. The research highlights the most significant aspects and processes to be taken into account for adequate in situ and laboratory surveys, when modern SfM software packages are used, and evaluates their effect on the quality of the results of the surface reconstruction.

DOI10.3390/s150407985
Co-authorsAnna Giacomini
2015Giacomini A, Thoeni K, 'Full-scale experimental testing of dump-point safety berms in surface mining', Canadian Geotechnical Journal, 150421040059000-150421040059000 (2015)
DOI10.1139/cgj-2014-0455
Co-authorsAnna Giacomini
2014Dall'Asta E, Perini L, Thoeni K, Roncella R, Giacomini A, 'METRIC COMPARISON OF AUTOMATIC ORIENTATION TECHNIQUES', Bollettino SIFET, 1-14 (2014) [C1]
Co-authorsAnna Giacomini
2014Thoeni K, Giacomini A, Lambert C, Sloan SW, Carter JP, 'A 3D discrete element modelling approach for rockfall analysis with drapery systems', INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 68 107-119 (2014) [C1]
DOI10.1016/j.ijrmms.2014.02.008Author URL
Co-authorsAnna Giacomini, Scott Sloan, John Carter
2013Thoeni K, Lambert C, Giacomini A, Sloan SW, 'Discrete modelling of hexagonal wire meshes with a stochastically distorted contact model', COMPUTERS AND GEOTECHNICS, 49 158-169 (2013) [C1]
DOI10.1016/j.compgeo.2012.10.014Author URL
CitationsScopus - 6Web of Science - 6
Co-authorsAnna Giacomini, Scott Sloan
2012Prazeres PGC, Thoeni K, Beer G, 'Nonlinear analysis of NATM tunnel construction with the boundary element method', Computers and Geotechnics, 40 160-173 (2012) [C1]
CitationsScopus - 8Web of Science - 8
2012Prazeres PGC, Thoeni K, Beer G, 'Corrigendum to 'Nonlinear analysis of NATM tunnel construction with the boundary element method'', Computers and Geotechnics, 42 98 (2012) [C3]
2012Lambert C, Thoeni K, Giacomini A, Casagrande D, Sloan SW, 'Rockfall hazard analysis from discrete fracture network modelling with finite persistence discontinuities', Rock Mechanics and Rock Engineering, 45 871-884 (2012) [C1]
DOI10.1007/s00603-012-0250-1
CitationsScopus - 5Web of Science - 5
Co-authorsAnna Giacomini, Scott Sloan
2012Giacomini A, Thoeni K, Lambert C, Booth S, Sloan SW, 'Experimental study on rockfall drapery systems for open pit highwalls', International Journal of Rock Mechanics and Mining Sciences, 56 171-181 (2012) [C1]
CitationsScopus - 7Web of Science - 5
Co-authorsScott Sloan, Anna Giacomini
2012Duenser C, Thoeni K, Riederer K, Lindner B, Beer G, 'New Developments of the Boundary Element Method for Underground Constructions', INTERNATIONAL JOURNAL OF GEOMECHANICS, 12 665-675 (2012) [C1]
DOI10.1061/(ASCE)GM.1943-5622.0000173Author URL
Show 7 more journal articles

Conference (19 outputs)

YearCitationAltmetricsLink
2015Thoeni K, Fityus SG, Giacomini A, Vaha J, 'Discrete modelling of a tilt box test for granular materials', Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 (2015)

This paper investigates the factors affecting the shear strength of granular materials by means of the tilt box test. The test involves the titling of a specifically designed split-box and measuring the angle at which the upper half of the box slides off. This angle can be interpreted as the peak friction angle of the sample for a low stress state. Experimental tests and numerical analyses using the Discrete Element Method (DEM) are carried out and compared. The study is carried out for two different materials, a rounded and an angular aggregate. It is shown that rolling resistance is needed to match the experimental results if only spheres are used but this is not the case for non-spherical particles. © 2015 Taylor & Francis Group, London.

Co-authorsStephen Fityus, Anna Giacomini
2015Effeindzourou A, Thoeni K, Giacomini A, Sloan SW, 'A discrete model for rock impacts on muckpiles', Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 (2015)

This work consists of a preliminary numerical study on the impact behaviour of rock blocks on muckpiles using the Discrete Element Method (DEM). A contact law using a linear hysteresis model for normal contacts and a Mohr-Coulomb model for tangential contacts is used. In addition, two dissipative laws are introduced consisting of a moment transfer law and normal viscous damping law. One of the aims of this study is to investigate if the contact law enables a realistic modelling of the rebound characteristics of a block during impact on a muckpile. A parametric study is carried out in order to investigate the influence of the constitutive model parameters and the presence of clumps. Numerical predictions are compared to experimental results. It is shown that clumps in the muckpile are essential to reproduce realistic results. © 2015 Taylor & Francis Group, London.

Co-authorsAnna Giacomini, Scott Sloan
2014Thoeni K, Giacomini A, Seedsman R, 'Rockfall analysis for highwalls with drapery systems', RocExs 2014, Lecco (2014) [E3]
Co-authorsAnna Giacomini
2014Thoeni K, Giacomini A, Murtagh R, Kniest E, 'A comparison of multi-view 3D reconstruction of a rock wall using several cameras and a laser scanner', ISPRS: International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Riva del Garda (2014) [E1]
DOI10.5194/isprsarchives-XL-5-573-2014
CitationsScopus - 1
Co-authorsAnna Giacomini
2013Thoeni K, Lambert C, Giacomini A, Sloan SW, Carter JP, 'An integrated approach for rockfall analysis with drapery systems', Slope Stability 2013, Brisbane (2013) [E1]
Co-authorsJohn Carter, Scott Sloan, Anna Giacomini
2013Thoeni K, Giacomini A, Lambert C, Sloan SW, 'Numerical investigation on the performance of a rockfall drapery system', Particle-Based Methods III: Fundamentals and Applications - Proceedings of the 3rd International Conference on Particle-based MethodsFundamentals and Applications, Particles 2013 (2013) [E2]

This paper presents a discrete modelling approach which allows the simulation of rockfalls behind drapery systems. The falling rock is represented by a rigid assembly of spheres whereas the slope is represented by triangular elements. Energy dissipation during impact on the slope is considered via friction and viscous damping. The drapery is represented by a set of spherical particles which interact remotely. The numerical model is used to investigate the efficiency of a drapery system. Various simulations with two different block sizes are performed and the numerical predictions of simulations with drapery are compared to simulations without drapery in order to assess the performance of the protection system.

Co-authorsAnna Giacomini, Scott Sloan
2012Thoeni K, Giacomini A, Lambert C, Sloan SW, 'Numerical and experimental investigation of a rockfall drapery system', Geophysical Research Abstracts, Vienna, Austria (2012) [E3]
Co-authorsScott Sloan, Anna Giacomini
2012Thoeni K, Irschara A, Giacomini A, 'Efficient photogrammetric reconstruction of highwalls in open pit coal mines', 16th Australasian Remote Sensing and Photogrammetry Conference Proceedings, Melbourne, Victoria (2012) [E2]
Co-authorsAnna Giacomini
2011Thoeni K, Giacomini A, Sloan SW, Lambert C, Casagrande D, 'Numerical analysis of rockfall hazard in open pit coal mines', Computer Methods for Geomechanics: Frontiers and New Applications. Volume 2, Melbourne, VIC (2011) [E1]
CitationsScopus - 1
Co-authorsAnna Giacomini, Scott Sloan
2011Thoeni K, Lambert C, Giacomini A, Sloan SW, 'Discrete modelling of a rockfall protective system', Particle-Based Methods II - Fundamentals and Applications, Barcelona, SPAIN (2011) [E1]
CitationsScopus - 2Web of Science - 2
Co-authorsScott Sloan, Anna Giacomini
2011Thoeni K, Lambert C, Giacomini A, Sloan SW, 'Discrete modelling of a rockfall protective system', Proceedings of the II International Conference on Particle -Based Methods Fundamentals and Applications: Particles 2011, Barcelona (2011) [E2]
Co-authorsAnna Giacomini, Scott Sloan
2011Giacomini A, Thoeni K, Kniest HT, Lambert C, 'In situ experiments of rockfall in an open pit coal mine', Proceedings, Slope Stability 2011: International Symposium on Rock Slope Stability in Open Pit Mining and Civil Engineering, Vancouver, BC (2011) [E1]
Co-authorsAnna Giacomini
2010Beer G, Riederer K, Thoeni K, 'New developments of the boundary element method with internal cells', Proceedings of PACAM XI - 11th Pan-American Congress of Applied Mechanics, Foz do Iguacu, Brazil (2010) [E1]
2009Beer G, Dunser C, Riederer K, Terkovics R, Thoeni K, 'New developments in the simulation of problems in underground construction', 1st International Symposium on Computational Geomechanics (ComGeo I), Cote d'Azur, France (2009) [E1]
2009Carvalho Dos Prazeres PG, Thoeni K, Beer G, 'Non-linear Tunnel Analysis with the Boundary Element Method', Proceedings of Computational Methods in Tunnelling - EURO:TUN 2009, Bochum, Germany (2009) [E1]
2008Thoeni K, Beer G, 'Error controlled analysis of non-linear problems using the boundary element method', Advances In Boundary Element Techniques IX, Seville, Spain (2008) [E1]
2008Thoeni K, Beer G, 'Efficient (Error Controlled) Calculation of Non-Linear Problems by the Boundary Ele- ment Method', 8th World Congress on Computational Mechanics WCCM8 5th European Congress on Computational Methods in Applied Sciences and Engineering ECCOMAS 2008, Venice, Italy (2008) [E1]
2008Duarte V, Cerrolaza M, Thoeni K, Beer G, 'Three dimensional piezoelectric boundary element simulation', Desarrollo y avances en métodos numéricos para ingeniería y ciencias aplicadas, Isla de Margarita, Venezuela (2008) [E3]
2007Thoeni K, Hafizi R, Beer G, 'Efficient Calculation of Non-Linear Problems using the Boundary Element Method in Tunnelling', CD-ROM Proceedings of the ECCOMAS Thematic Conference on Computational Methods in Tunnelling (EURO:TUN 2007), Vienna, Austria (2007) [E1]
Show 16 more conferences

Report (4 outputs)

YearCitationAltmetricsLink
2014Giacomini A, Thoeni K, 'Energy Absorption Capacity of Muck Piles and their Status as Engineered Hard Barriers Stage One', Australian Coal Association Research Program, 250 (2014) [R1]
Co-authorsAnna Giacomini
2012Giacomini A, Lambert C, Thoeni K, 'Improved Management of the Rock Fall Hazard at the Base of the Highwalls', Australian Coal Association Research Program, 184 (2012) [R1]
Co-authorsAnna Giacomini
2011Beer G, Thoeni K, Julia U, Kaundinya I, Hamann E, Kostrzewa M, et al., 'SeRoN deliverable D200: Identification and risk classification of critical infrastructures', European Commission (2011) [R2]
2010Holthausen N, Zulauf C, Ruf D, Kaundinya I, Heimbecher F, Thoeni K, et al., 'SeRoN deliverable D100: Identification of threats to transport infrastructures', European Commission (2010) [R2]
Show 1 more report

Thesis / Dissertation (2 outputs)

YearCitationAltmetricsLink
2009Thoeni K, Error-Controlled Adaptive Analysis of Non-Linear Problems using the BEM, Graz University of Technology, Austria (2009) [T1]
2005Thoeni K, Efficient calculation of anisotropic fundamental solutions for the boundary element method, Graz University of Technology, Austria (2005) [T1]
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Grants and Funding

Summary

Number of grants8
Total funding$657,005

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


20151 grants / $124,780

Advanced Analysis of Collisions Between Ultra Class Haul Trucks and Windrows $124,780

Funding body: Australian Coal Research Limited

Funding bodyAustralian Coal Research Limited
Project Team
SchemeAustralian Coal Association Research Program (ACARP)
RoleLead
Funding Start2015
Funding Finish2015
GNo
Type Of FundingInternal
CategoryINTE
UONY

20142 grants / $261,090

Rockfall Hazard Matrix for Risk Reduction in Mine Sites$259,590

Funding body: Australian Coal Research Limited

Funding bodyAustralian Coal Research Limited
Project TeamDoctor Anna Giacomini, Doctor Klaus Thoeni
SchemeAustralian Coal Association Research Program (ACARP)
RoleInvestigator
Funding Start2014
Funding Finish2014
GNoG1300807
Type Of FundingAust Competitive - Non Commonwealth
Category1NS
UONY

5th Interdisciplinary Workshop on Rockfall Protection (RocExs 2014), Lecco Italy, 29-31 May 2014$1,500

Funding body: University of Newcastle - Faculty of Engineering & Built Environment

Funding bodyUniversity of Newcastle - Faculty of Engineering & Built Environment
Project TeamDoctor Klaus Thoeni
SchemeTravel Grant
RoleLead
Funding Start2014
Funding Finish2014
GNoG1400590
Type Of FundingInternal
CategoryINTE
UONY

20132 grants / $11,200

Efficient multi-view 3D reconstruction combining terrestrial and aerial photography for geotechnical applications$10,000

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor Klaus Thoeni
SchemeEarly Career Researcher Grant
RoleLead
Funding Start2013
Funding Finish2013
GNoG1300601
Type Of FundingInternal
CategoryINTE
UONY

Third Conference on Particle-based Methods (PARTICLES 2013), Stuttgard, Germany, 18 - 20 September 2013$1,200

Funding body: University of Newcastle - Faculty of Engineering & Built Environment

Funding bodyUniversity of Newcastle - Faculty of Engineering & Built Environment
Project TeamDoctor Klaus Thoeni
SchemeTravel Grant
RoleLead
Funding Start2013
Funding Finish2013
GNoG1300865
Type Of FundingInternal
CategoryINTE
UONY

20122 grants / $258,735

Energy absorption capacity of muck piles and their status as engineered hard barriers$257,935

Funding body: Australian Coal Research Limited

Funding bodyAustralian Coal Research Limited
Project TeamDoctor Anna Giacomini, Doctor Klaus Thoeni
SchemeAustralian Coal Association Research Program (ACARP)
RoleInvestigator
Funding Start2012
Funding Finish2012
GNoG1100942
Type Of FundingAust Competitive - Non Commonwealth
Category1NS
UONY

EGU Vienna, Austria, 22 - 27 April 2012$800

Funding body: University of Newcastle - Faculty of Engineering & Built Environment

Funding bodyUniversity of Newcastle - Faculty of Engineering & Built Environment
Project TeamDoctor Klaus Thoeni
SchemeTravel Grant
RoleLead
Funding Start2012
Funding Finish2012
GNoG1200509
Type Of FundingInternal
CategoryINTE
UONY

20111 grants / $1,200

PARTICLE 2011, Barcelona, Spain, 26 - 28 October 2011$1,200

Funding body: University of Newcastle - Faculty of Engineering & Built Environment

Funding bodyUniversity of Newcastle - Faculty of Engineering & Built Environment
Project TeamDoctor Klaus Thoeni
SchemeTravel Grant
RoleLead
Funding Start2011
Funding Finish2011
GNoG1100694
Type Of FundingInternal
CategoryINTE
UONY
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Research Supervision

Current Supervision

CommencedResearch Title / Program / Supervisor Type
2013Numerical Investigation of the Energy Absorbtion Capacity of Barriers in Surface Mining
Civil Engineering, Faculty of Engineering and Built Environment
Co-Supervisor
2013Prediction of Shear Strength of Discontinuities
Civil Engineering, Faculty of Engineering and Built Environment
Co-Supervisor
2012Numerical and Experimental Study of Particle Flow in Soils
Civil Engineering, Faculty of Engineering and Built Environment
Co-Supervisor
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Dr Klaus Thoeni

Position

Research Associate
Centre for Geotechnical and Materials Modelling
School of Engineering
Faculty of Engineering and Built Environment

Focus area

Civil Engineering

Contact Details

Emailklaus.thoeni@newcastle.edu.au
Phone(02) 4921 5735
Fax(02) 4921 6946

Office

RoomEA204
BuildingEngineering Building EA
LocationCallaghan
University Drive
Callaghan, NSW 2308
Australia
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