Introduction

Finite element software
for geotechnics and structures

ZSoil is the Windows-based finite element software that offers a unified approach to numerical simulation of soil and rock mechanics, above-ground and underground structures, excavations, soil–structure interaction, and underground flow, including dynamic, thermal and moisture-migration analyses.

Available for Windows 10 & 11

New Features in ZSoil 2026

An Integrated Approach to Understanding Ground Behaviour and Analysing Soil–Structure Interaction

ZSoil is an integrated software package offering a unified approach to the natural processes encountered in geotechnical and foundation engineering, including stability, consolidation, creep and underground flow, excavations, and soil–structure interactions.

Engineering Applications

  • Foundations & Settlements

    Building foundations, foundation rafts and soil–structure interaction.

  • Excavations & Retaining Walls

    Temporary and permanent retaining structures, support systems and complex excavation sequences.

  • Tunnels & Underground Structures

    Tunnels, metro stations, underground storage facilities and mining works.

  • Slopes & Earthworks

    Highway and railway cuts and fills, embankments and slope stability.

  • Dams & Hydraulic Structures

    Dams, waterfront structures, hydraulic works and underground flow.

  • Energy Geostructures

    Thermal analyses and interactions between ground and energy geostructures.

ZSoil is a continuously upgraded finite element software package for geotechnical, foundation, and underground-flow engineering, developed for the Microsoft Windows environment. The program has been used in forensic analysis and design studies, covering a wide range of scenarios encountered in real-world case studies.

View Case Studies

Development & Expertise

ZSoil was developed by Zace Services Ltd from 1982 to 2022. Since 2022, its development has continued under GeoDev Sàrl. The latest versions were developed by a team led by A. Truty, K. Podleś and Th. Zimmermann, with research experience at the Swiss Federal Institute of Technology (EPFL), U.C. Berkeley, and Caltech.