Pile-slurry interaction

What are custom interface materials usually used for? Can it be used to simulate pile-slurry interaction?
Sand Compaction Pile

Hi, I'm trying to model Sand Compaction Pile Plaxis 3D. But I can't figure out how to define Sand Piles . What is the procedure for defining sand piles?
earthquake pile raft foundation

I am working on a project that requires the application of earthquakes on the pile raft foundation. When I entered the earthquake on the basis of a surface-prescribed displacement represented by acceleration...
Bidirectional pile load test

I am trying to validate my model for bidirectional pile load test using the ISSMGE paper "Back analysis of O-cell pile load test using FEM". Here on applying surface load on top and bottom pile sections...
Modelling a helical pile in axisymmetric model.

Hi, I am wondering what units i need to use for the input of a point load. It asks for kN/m but I am modelling a helical pile which due to axisymmetry should be kN/radian? If I want to do test point...