Estimation of pile displacements anchored in sand after a large number of cycles

Taking into account the soil-structure interaction in the design of structures is a very decisive factor in the safety and durability of these structures. Several studies have been carried out in this direction to better describe the behavior of soil-structure interfaces.

This paper presents an analysis of the maximum and minimum displacement as a function of the number of cycles of a bored pile under the effect of cyclic tensile loading. In this study, the cyclic stiffness and the displacement of the pile are expressed by a simple formulation according to the cyclic parameters, based on the exploitation of the experimental tests carried out by Benzaria (2013) on a bored pile.The proposed formulation well predicts the displacement of piles in cyclic tensile. The approach presented in this paper can be used to evaluate the maximum and the minimum displacement of the head of pile foundation subjected to large number of shear cycles.