41x
006069
2025-10-07

Multi-Layered Soil – Soil Massif

If you select the Multi-layered | Soil massif definition type, the existing soil layers are automatically determined from an existing soil massif in the model.

Important

This definition type is only available in conjunction with the activated Geotechnical Analysis add-on.

  • Soil Massif

The soil layers are derived from the "Soil" type of a solid defined in RFEM.
A soil massif can be defined in two ways:

  1. Using any number of boreholes from which the layer geometry is interpolated, or
  2. Using soil solids that are created directly in the model.

For each foundation, RFEM automatically determines the locally existing layers from the soil massif based on the respective foundation position. This means that a single soil massif can be used for several foundations without requiring a separate borehole for each foundation.

Tip

For more information on defining a soil massif, see the online manual of the Geotechnical Analysis add-on.

  • Use in combination with geotechnical analysis

The soil massif is defined using the Geotechnical Analysis add-on and contains all relevant material and layer information.
This data is automatically used for foundation design checks in the “Concrete Foundations” add-on if the "Soil massif" definition type is available.

Tip

This feature is particularly suitable for models with many single foundations or for layered soils, as the layer sequence is automatically recognized at each foundation position.

  • Calculation optimization

To reduce calculation time, it is possible to exclude the soil massif solids from the general calculation if required. To do this, select the Deactivate for calculation option in the Edit Solids dialog box.

Important

Even if the solids of the soil massif are deactivated for the calculation, their layer information is still used for the foundation design in the Concrete Foundations add-on. The option can therefore always be activated to speed up the calculation.