The NZGS is represented on numerous national and international groups with the aim of promoting the interests of NZGS members in technical and political arenas.
National Seismic Hazard Model update – Technical Advisory Panel
NZGS representative: Rick Wentz & Andreas Giannakogiorgos
Our current National Seismic Hazard Model was created in 2002, based on science from the 1990s. This project by GNS Science will create a new model for New Zealand.
MBIE Code Advisory Panel
NZGS representative: Ross Roberts
The Code Advisory Panel (CAP) is made up of industry representatives and groups who work with MBIE to provide strategic and technical advice on the New Zealand Building Code. The CAP meets quarterly, with updates published following the meeting. These include the agenda, minutes and a summary of the risks discussed at each meeting. You can find out more about the panel, and read minutes of the past meetings, here.
Joint Technical Committee 1: Natural Slopes and Landslides
NZGS representative: Chris Massey
The Joint Technical Committee no 1 (JTC1) of the Federation of the International Geo-engineering Societies (FedIGS) was established in 2010 with global representation. The main committee’s activities are:
- periodic meetings aimed at establishing and modifying, the program, at evaluating the results of the established activities and at examining any specific problem that is submitted to the attention of the community
- selection of the seat of the International Symposia on Landslides (ISLs) and collaboration in the development of the scientific program
- spreading of consolidated information and data on major topics regarding the domain of landslides
- stimulation of new ideas through ad hoc initiatives
More information is available here.
ISSMGE Technical Committees
NZGS has representation from our more senior members on numerous ISSMGE committees. You can find out more about these groups here. If you would like to be nominated by NZGS to one of these committees please contact our secretary.
| TC# | Name | NZGS representative | Introduction / summary of TC purpose | Latest news (2023-2025) |
| 101 | Laboratory Stress Strain Strength Testing of Geomaterials | Gabriele Chiaro | Technical Committee 101 covers all aspects of laboratory testing. It organised many IS, workshops, international exchanges and created the “Bishop lecture”. | • 21st ICSMGE, Vienna – TC101 and TC102 will co-organise a joint session at the 21st ICSMGE under the theme “Environmental Effects on Soils and Rocks – In Situ and Laboratory Testing.” • TC101 Mini-Symposium, Denmark – The TC101 Mini-Symposium was successfully held in Copenhagen on 2–4 June 2025. Positioned between the main symposia (IS-Porto 2023 and IS-Ankara 2027), the event provided an informal setting that fostered intensive discussion and networking. • 8th Bishop Lecture – Professor Federica Cotecchia (University of Bari, Italy) has been selected as the 8th Bishop Lecturer. The lecture will be delivered either at the 21st ICSMGE in Vienna or at IS-Ankara 2027. • Election of new TC101 Chair – Professor Matthew Coop will step down as TC101 Chair after eight years of service. The election process for a new Chair is currently underway, with nominations closing on 31 October 2025 and voting concluding on 21 November 2025. |
| 102 | Ground Property Characterization from In-Situ Tests | TC102 objectives include: Promote the utilization and improve the interpretation of in-situ tests to enhance geotechnical site characterization, including the the determination of soil and rock properties, use of borehole techniques, penetration tests, and geophysical methods, and their variance. Maintain an international website and email network, as well as hold several meetings and the international conference on site characterisation.Maintain a set of international guidelines and standards for in-situ testing methods for reference on procedures and interpretation, and prepare a list of important and relevant publications. | ||
| 103 | Numerical Methods | Ioannis Antonopoulos | TC103 aims to provide a forum for all interested members of ISSMGE to explore the using of computational tools and developing of advanced numerical methods to solve problems relevant to soil mechanics and geotechnical engineering. | No report. |
| 104 | Physical Modelling in Geotechnics | Phil Robins | Technical Committee 104 disseminates and develops knowledge and practice within the area of physical modelling in geotechnical engineering by establishing working groups to promote the sharing of resources for teaching that uses physical modelling, to develop standardized and sustainable equipment and sensors for physical modelling, and to produce a website for general dissemination and communication on physical modelling.TC104 hosts the ISSMGE Honored Scofield Lecture | No report. |
| 105 | Geo-Mechanics from Micro to Macro | Rolando Orense | TC105 exists to:Promote co-operation and exchange of information about the behaviour of soil grains and granular interactions, so as to clarify the fundamental micro-mechanisms of the behaviour of soils.Promote improved Discrete Element Modelling (DEM) of soil aggregates, through simulations of laboratory tests, especially with regard to the observation of grain crushing and rearrangement.Encourage a micro-structural understanding of significant macroscopic behaviours of both sands and clays, such as compressibility, anisotropy, yielding, creep, cyclic liquefaction, shear rupture and tensile fracture.Open up a discussion on the use of micro-structural measurements to enhance soil characterisation procedures (grading, plasticity index, CPT / SPT etc) and to clarify the selection and use of continuum parameters in geotechnical engineering practice. | • TC 105 (Geomechanics from Micro to Macro) has been meeting online regularly, about twice a year. We had a successful TC-105 Conference last September 2024, held at Grenoble, France, which was attended by about 270 participants. 130 conference papers have been accepted (after review) and published in open access in the IOP: Earth and Environmental Science conference series. Jacques Desrues delivered the 1st “Micro-to-Macro” lecture entitled “ Filling the gap between microscopic and engineering approaches of granular soils””. Preparations are underway for the next TC-105 Conference, which will be held in Nanjing, China, in May 2028. • Following the first-ever round-robin test on discrete element modelling (DEM) that ran from 2019-2024 and focused on the angle of repose, the second round-robin test is currently underway, focusing on granular flow problems. Experiments are ongoing and it is expected that participants will be asked to conduct DEM simulations and compare the particle travel distances with experimental data. Details are available via this link: https://ds.cc.yamaguchi-u.ac.jp/~geotech/tc105_2RRA/ • TC-105 is planning a special session during the 31st ICSMGE in Vienna, Austria, in June 2026. The ICSMGE organisers have received 55 abstracts on topics related to TC105. Also, a joint session with TC-309 is being organised. |
| 106 | Unsaturated Soils | Katherine Yates Paul Jaquin | TC106 exists to:Disseminate knowledge and practice in the area of mechanics of unsaturated soils including as examples, expansive, collapsible, residual, arid, and compacted soils.Organize specialty conferences, symposiums and workshops.Encourage preparation of keynote lectures, state-of-the-art lectures including new technology, general reports for conferences organized by the International Society, regional conferences and conferences organized by Member societies.Establish guidelines and technical recommendations in the field of unsaturated soils | No report. |
| 107 | Tropical Residual Soils | TC107 exists to:Disseminate knowledge and practice in residual tropical soils to members of ISSMGE and other learned societies particularly ICOLD (International Commission on Large Dams)Organize specialty Conferences, symposia and workshopsEncourage preparation of keynote lectures, state of the art lectures, new technologies, general reports for ISSMGE and ICOLD International conferences, Regional Conferences, Local (member society) Conferences. | ||
| 201 | Geotechnical Aspects of Dykes and Levees and Shore Protection | TC201 exists to promote discussion on the state of the art and developing the science and engineering in order to increase fundamental understanding and modelling of strength, deformation and erosion behaviour of soils and failure processes of water retaining structures like dikes, dunes, (underwater) dams. | ||
| 202 | Transportation Geotechnics | TC202 works closely with its members to organize symposia, workshops, and international exchanges dealing with all aspects of Transportation Geotechnics in both traditional and emerging areas. TC202 has created a new named lecture series in commemoration to late R.R. Proctor to be delivered by the world’s most distinguished achievements in Transportation Geotechnics. “Proctor Lecture” is organized as the primary keynote event at each International Conferenence Transportation Geotechnics (ICTG) hosted by ISSMGE-TC202. | ||
| 203 | Earthquake Geotechnical Engineering and Associated Problems | Misko Cubrinovski, Mark Stringer, Brendon Bradley | TC203 exists to promote and disseminate advances in the science and practice of earthquake geotechnical engineering to reduce seismic risk and improve the resilience of infrastructure systems and communities. Committee activities seek to promote and facilitate international exchanges across a broad mix of researchers, students, and practitioners, working on earthquake geotechnical engineering and related problems, to ensure rapid dissemination of the newest developments in the state of the art and practice.The committee recognizes outstanding individuals in the discipline through the Young Researcher Award and Ishihara Lecture. | No report. |
| 204 | Underground Construction in Soft Ground | The main topics addressed by TC204 concern the geotechnical aspects of the analysis, design, construction and maintenance of deep excavations, tunnels and large underground structures, with particular emphasis on the development, effects and control of ground movements, their interaction with existing structures, mitigation measures and risk management. | ||
| 205 | Safety and Serviceability in Geotechnical Design | TC205 aims to organize and promote professional activities in areas of:Limit State Design (LSD) in Geotechnical EngineeringLoad and Resistance Factor Design (LRFD)Development and assessment of design codesImpact of natural hazard on safety and serviceability in geotechnical design | ||
| 206 | Interactive Geotechnical Design | The TC members will debate the (if any) differences between “Interactive Design” and “The Observational Method”. The outcome will be recommended for further use. This might also mean a possible change of the TC206 title if the TC members feel the need for that. | ||
| 207 | Soil-Structure Interaction and Retaining Walls | Ioannis Antonopoulos Jan Kupec | TC207 exists to promote co-operation and expertise exchange within the area of soil-structure interaction and retaining walls amongst the leading research and design institutes and universities world-wide as well as amongst the largest contractors with the objective to enhance overall engineering and research expertise within this area. | No recent activity to report. |
| 208 | Slope Stability in Engineering Practice | Ross Roberts | TC208 exists to:develop and disseminate knowledge and practice within the ISSMGE slope stability communityestablish guidelines and technical recommendations for slope stability practiceassist with technical programs of international and regional conferences organised by the ISSMGE | No recent activity to report. |
| 209 | Offshore Geotechnics | TC 209 will disseminate knowledge on offshore geotechnics, award the ISSMGE Honor McClelland Lecture every 2 to 3 years and have it delivered at major conferences. | ||
| 210 | Embankment Dams | James Burr | TC210 exists to promote co-operation and exchange of information concerning research and developments in geotechnical issues of dam construction among TC members and ISSMGE member societies. | No report. |
| 211 | Ground Improvement | Martin Larisch | ISSMGE TC 211 aims to foster an international technology transfer and know-how exchange that will effectively contribute to advancing the state of engineering and construction practice and accelerate reliable use of innovative ground improvement geosystems for a variety of engineering applications. | No report. |
| 212 | Deep Foundations | Martin Larisch | TC212 organized an experimental site for testing piles where different pile types are installed and then tested under different loading conditions. The Bolivian Experimental Site for Testing Piles (B.E.S.T.) is situated 24 kilometers North-east of Santa Cruz de la Sierra.The purpose of the study is to provide results from full-scale loading tests on piles and a pile group. | No report. |
| 213 | Scour and Erosion | Bruce Melville | The technical committee was initiated by ISSMGE to discuss scour processes and countermeasures in the geotechnical community, a topic that was covered primarily by hydraulic engineers and scientists. To spotlight the mutual effects of surface water, subsoil and pore water, the committee encourages hydraulic and geotechnical engineers to discuss the phenomenon of the interaction of water, soil and rock. | TC213 meets at each International Conference on Scour and Erosion (ICSE) conference, either in person or via Zoom. The next ICSE is ICS-12 to be held in Chongqing, China from 4-7 November 2025. The agenda for the meeting includes: • A summary of the previous ICSE (ICSE-11) by the chair of that conference • A review of the ISSMGE Interactive Technical Talks (IITT) on Scour and Erosion in 2024 by the TC Chair (S. Sassa) • An overview of ICSE-12 by the conference host • An introduction to ICSE-13 in 2027 in Portugal by the ICSE-13 Co-chair • A presentation by a host candidate for ICSE-14 in 2029 • Voting for the host of ICSE-14 • A presentation on the 21st International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE) to be held in Vienna in June 2026 and other relevant information on Scour and Erosion. |
| 214 | Foundation Engineering for Difficult Soft Soil Conditions | Andreas Giannakogiorgos | ISSMGE-TC214 on Soft Soil Engineering ”Foundation Engineering for Difficult Soft Soil Conditions” will focus on the following three broad topics under the main theme “Old but New prediction methods from laboratory to simulation in soft soil engineering”:Physical and mechanical propertiesPrediction of soil behaviorGround improvement / soil treatment | No report. |
| 215 | Environmental Geotechnics | The purpose of the TC215 is to spread the state-of-the-art and -practice of the main areas of Environmental Geotechnics to practitioners and researchers working in this field, as well as individuals in other professional areas (e.g., chemical engineering, environmental engineering). The TC215 is devoted to a number of activities such as: organizing and supporting technically the main workshops and conferences on these topics, setting up task forces meant to disseminate knowledge in this field, to promote new initiatives, to increase participation at local and global events related to the geo-environment, to encourage international and interdisciplinary cooperation. | ||
| 216 | Frost Geotechnics | TC216 will participate in the organization of a specialty conference during the period. | ||
| 217 | Land Reclamation | Tony Fairclough | The main aim of the TC is to promote a greater interaction among engineers engaged in geotechnical and geoenvironmental engineering related to land reclamation so as to achieve greater cooperation and facilitate the exchange of information, experience, knowledge, and new ideas in these two areas. In the next four years (2020-2023), the committee would endeavor to organize several small to medium size workshops, with at least two of them to coincide with a major conference under the auspices of ISSMGE (e.g. the 20th ICSMGE in Sydney, Australia, 2021 and the 17th Asian Regional Conference in Nur-Sultan, Kazakhstan, 2023). | No recent activity to report. |
| 218 | Reinforced Fill Structures | Sam Best | TC218 does not have a clearly stated intent. Objectives can be seen on their website. | |
| 219 | System Performance of Geotechnical Structures | TC219 aims to disseminate and develop knowledge and practice on performance based design methodologies in geotechnical engineering. To promote cooperation and expertise exchange within the research area of system performance, this TC will deal with the following important technical issues:Organize the international conferences, symposiums and technical workshops with the aims to promote cooperation and exchange of information concerning the active areas of research and developments on system performance in geotechnical practice, such as the 1st International Conference on System Performance in Geotechnical Engineering, intended to be organized at the end of 2020 or the beginning of 2021;Host a workshop or special session at the next ICSMGE, Sydney 2021;Create webinars for technical training purpose and encourage members to contribute to ISSMGE program of webinars;Encourage members to give keynote lectures, state-of-the-art lectures, general reports for conferences organized by the International Society, regional conferences and conferences organized by member societies. | ||
| 220 | Field Monitoring in Geomechanics | Paul Burton Phil Robbins | TC220 helps bring together practitioners, academics and suppliers, to exchange knowledge on field monitoring.The principal aims of TC220 are:To organise specialty conferences, symposiums, workshops and short courses dedicated to the subject of field monitoring in geomechanics. To encourage the involvement of a wide range of geo-professionals in these events.To encourage the preparation of keynote lectures, state-of-the-art lectures including on new technologies, general reports for conferences organised by the International Society, regional conferences and conferences organized by Member Societies.To promote the inclusion of structural and geotechnical monitoring in universities and at conferences and meetings of other international bodies, thereby encouraging a common culture of learning through field monitoring.FMGM is an international symposium held every four years since 1977. TC220 will ensure that this tradition continues and will encourage ISSMGE members to participate in future FMGM Symposia. | No report. |
| 221 | Tailing and Mine Wastes | No details on website | ||
| 301 | Preservation of Historic Sites | TC301 organises an international conference. The third International Conference of TC301 is scheduled for 22-24 June 2022 in Napoli, Italy. | ||
| 302 | Forensic Geotechnical Engineering | Andreas Giannakogiorgos | TC302 exists to conduct technical events in Forensic Geotechnical Engineering with specific focus on guidelines and lessons learnt, and to prepare introductory guidance documents on the forensic procedures to be followed in failure investigations pertaining to geotechnical engineering. | |
| 303 | Coastal and River Disaster Mitigation and Rehabilitation | TC303 exists to disseminate knowledge and practice on coastal and river disaster mitigation and rehabilitation to the membership of the ISSMGE, and establish guidelines and technical recommendations on coastal and river disaster mitigation and rehabilitation. | ||
| 304 | Engineering Practice of Risk Assessment and Management | TC304 is charged with promoting and enhancing professional activities in geotechnical and geo-environmental engineering in areas related to:Geostatistics and probabilistic site characterizationQuantification of uncertainties in performance predictionReliability-based designRisk-based decision analysisCalibration of LRFD-type geotechnical design codesProject risk management. | ||
| 305 | Geotechnical Infrastructure for Megacities and New Capitals | TC305 exists to disseminate knowledge and practice on design and practice of geotechnical technologies at megacities and new capitals to the members of ISSMGE, and establish guidelines and technical recommendations on design and practice of geotechnical technologies at megacities and new capitals. | ||
| 306 | Geo-engineering Education | Rolando Orense | TC306 focuses on the fundamentals of soil mechanics and geotechnical engineering, i.e. topics typically covered in undergraduate curricula. Its primary, but not exclusive, audience is currently active, past and future geotechnical engineering educators. | • TC-306 successfully organised the 6th International Conference on Geotechnical Engineering Education (GEE2025), which was held on 2-4 July 2025 in Nancy, France. 46 papers were presented at the conference, and they are available via the ISSMGE Online Library (https://www.issmge.org/publications/online-library?database=3&conference=134) • A collaboration has been organised between TC 103 and TC 306 on the use of numerical methods in geotechnical engineering education. A task force has been established to systematically define the teacher’s needs and determine the metadata accompanying educational materials. • The 1st EduHackathon (Assessing the usefulness of Large Language Models in geotechnical education) was organised during the FOMLIG Workshop held from 15-17 October 2025 in Florence, Italy. The hackathon explored the potential use of large language models (LLMs) and other generative AI tools in creating educational support materials for soil mechanics and geotechnical courses. |
| 307 | Sustainability in Geotechnical Engineering | The purpose of TC 307 is to monitor, contribute to and disseminate information on sustainability related issues in geotechnical engineering. The TC will actively participate with interested stakeholders in industry and academia in arranging specialty conferences, workshops and events on sustainability in geotechnical engineering. The committee will publish, from time to time, state-of-the-art review articles/papers/reports in journals, conference proceedings, and magazines to promote this new area. The committee may also assist in publishing edited volumes of collected papers in this area. | ||
| 308 | Energy Geotechnics | TC308 has a detailed terms of reference which can be found on their website. | ||
| 309 | Machine Learning and Big Data | Vick Kumaran | TC309 aims to provide a forum for all interested members of ISSMGE to explore the use of machine learning (ML) techniques to solve problems relevant to soil mechanics and geotechnical engineering. |