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Structures & Foundations
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Soil & Rock Mechanics

Starting the 1st of January 2023, GeoDev will centralize all activities around ZSOIL.PC: Research & Development, Hotline, Training Courses and Sales.

Click here to learn more about GeoDev.


Online by Zoom and Live at HEIA Fribourg Switzerland,
Friday 25.8.2023 09.00 – 17.00,

Organised by Geomod Ltd, ITEC-HEIA Fribourg & Zace Services Ltd

Also celebrating 38 years ZSOIL.PC

Registration is open now: Registration form


A special accent is put this year again on Uncertainty Quantification and Reliability Analysis.

Numerical simulation in geomechanics, constitutive aspects, soil-structure interaction and associated structural analysis with emphasis on present and future engineering practice: theory, applications, case studies, failure analyses, optimisation, probabilistic approaches.


The symposium combines invited presentations, and contributions by ZSOIL users and others. It has been taking place every year in late summer over the past twenty years, at the Swiss Federal Institute of Technology, in Lausanne and newly at Haute Ecole d’Ingénierie et d’Architecture de Fribourg.


9h-17h: 20' talks

Speakers tentative list: S. Commend, R. Obrzud, M. Preisig, M. Hohberg, G.W. Byun, J. Zannin, K. Staszewska, J. Minini, G. Jacot-Descombes, A. Truty, K. Dziedzic, Y. Ji, S. Kivell

17h-19h: cocktail dinner


Engineers and developers confronted with the need to perform accurate numerical simulations or optimisations for complex underground, above ground or combined constructions have an opportunity to exchange experience, see state of the art presentations of recent case studies and get a comprehensive introduction to numerical simulations in 2D or 3D, with ZSOIL.PC, in dry or partially saturated rock or soil, with full structural capabilities, soil-structure interaction, interfaces, thermal effects, ultimate load evaluation, continuous safety assessment, including creep, swelling, dilation, dynamics, uncertainty quantification with UQlab etc.


UQLab is a computational framework for uncertainty quantification which makes uncertainty quantification available to anybody, in any field of applied science and engineering.
UQLab is developed at the Chair of Risk, Safety and Uncertainty Quantification of ETH Zurich under the supervision of Prof. B. Sudret and Dr. S. Marelli.


ZSOIL.PC is a user-friendly 2D/3D finite element package for soil, rock and soil-structure analysis available and used worldwide since 1985, and continuously upgraded. The program was developed at Zace Services Ltd, by a team of engineers with research experience at the Swiss Federal Institute of Technology in Lausanne, UC Berkeley, California Institute of Technology, Purdue University, Cracow University of Technology, Stanford University and UC Davis . The aim is to provide civil engineers with a simple tool to accurately support geomechanical and structural engineering analysis, dimensioning and optimisation. Since ZSOIL.PC first came out in 1985 it has steadily gained worldwide acceptance among practitioners as well as teachers and researchers. Today, upto ten free student versions are downloaded every day.


FEE: 200 CHF (free for speakers & HEIA Fribourg affiliates, 50% discount for ZSOIL owners,
10 CHF for students). Registration required.

Please prepay to Geomod SA, Epinettes 32, 1007 Lausanne, Switzerland
Payment in CHF to : BANQUE CANTONALE VAUDOISE, CH-1001 Lausanne,
account n° 10-725-4, IBAN CH37 00767 000L 5049 0311

with mention “ZSOIL symposium”, and your name and affiliation



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