The dialog box for the mesh settings can be found in the Calculate menu. The Solids tab provides settings for the FE mesh of soil solids. The corresponding input dialog box appears as shown in the figure below.
Element Length (1)
In RFEM 6, you can define a target mesh length for the structure to be analyzed in the General tab of the mesh settings.
The option to be activated in (1) allows you to define your own target value for the FE mesh length of the soil, independent of the globally defined FE mesh length for the building, for example.
The different dimensions of the components and the soil and the resulting different demands on the FE mesh size are thus taken into account.
Further general information on mesh generation with finite elements can be found in the FE Mesh section of the RFEM 6 manual.