How to obtain the soil interface's stresses - Talpa Module


For TBM analysis, I’m using the Talpa module. For the soil-tunnel interaction, a rigid frictional interface has been considered. Furthermore, after the analysis, I am unable to extract the interface stresses and how does the interface gap (D) impact the interface’s stiffness?

Thanks in advance.


the theoretical background of the rigid frictional interface elements can be found within the SOFiMSHC and TALPA manual.

SSD / TEDDY > Help > User Manuals > All Manuals… > sofimshc > 5.10.4 Interface-elements
SSD / TEDDY > Help > User Manuals > All Manuals… > talpa > 2.3.3 Rigid Frictional Interface Element

The possible results for the implicit hinge can be found in the report of the following TEDDY example:

TEDDY > File > Examples > talpa > tunnel > tunnel-embedded.dat

Best regards
Frederik Höller
Your SOFiSTiK Support Team