This example involves driving a concrete pile through an 11 m thick clay layer into a sand layer, as can be seen in the figure below. The pile has a diameter of 0.4 m. Pile driving is a dynamic process that causes vibrations in the surrounding soil. Moreover, excess pore pressures are generated due to the quick stress increase around the pile.

In this example focus is placed on the irreversible deformations below the pile. In order to simulate this process most realistically, the behavior of the sand layer is modelled by means of the HS small model.