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There are 2 modules available for geotechnical calculations: Foundation Design and 3D Soil that can work together or individually.

  • Foundation Design makes the EC7 code check of the foundation load carrying capacity.
  • 3D Soil calculates the interaction between the soil properties and the structure.



Building stresses are usually analyzed in detail, while the foundation is modelled with springs to simulate the underlying soil deformation. These springs - which are often assumed to have the same characteristics over the entire foundation, does not give a true picture of how the soil reacts to the loads.

With 3D Soil the deformation and settlement profile will be much more accurate and - which is more important - the internal forces of the superstructure will be also more realistic according to the soil structure interaction. (e.g. it is more relevant when we would like to calculate the internal forces in a foundation slab). This mentioned effect is also considered when we talking about only the linear 3D supporting effect of the soil. Above this conduct, with 3D Soil module, the nonlinear effects of the soil structure interaction can be followed with different nonlinear soil material models (e.g. Mohr-Coulomb plasticity) which give more accurate results.

With FEM-Design 3D Soil, the different soil layers can be defined to create a 3-dimensional soil volume, which is analyzed simultaneously with the overlying structure. This is an innovative way to take into account the soil deformation and thus obtain a proper stiffness analysis and cumulative load calculation.

The module is a unique innovation. This may change both the methodology and approaches to assess the building settlement. Geotechnical properties cannot be represented by the springs properly. 

FEM-Design 3D Soil models soil with 3D finite element and becomes a construction material like concrete, steel, wood or other materials. The analysis combines these materials in a single calculation. This gives a much more accurate view of soil deformation.

We have made a lot of verification examples to explain the results and how 3D Soil works. You can get it here: Verification examples

The user manual can be found here User Manual.


EC7 foundation design checks the load carrying capacity of your foundations. It checks for both compression and sliding.

Everything is presented like hand-calculations to make sure, that this is not a 'black box'.

Available national annexes are Danish, Finnish, German, Hungarian, Norwegian, Polish, Romanian, Swedish and British. Concrete design also has the “clean” Eurocode without national annexes.