A Contact Model Coupling Friction and Adhesion: Application to Pile/Soil Interface

摘要

In this paper, the behavior of the interface pile-soil is simulated using a unilateral contact model with the coupling of friction and adhesion. This model gives a continuous transition from complete adhesion to the classical Coulomb friction law with unilateral conditions. The model is implemented in the finite element code GYPTIS90 developed by Raous et al. An application is presented, for modeling soil/pile interface behavior, on the simulation of pull-out experiments of a pile. The identification of the model parameters is discussed and comparisons are presented between modeled pile behavior and that predicted from experimental results. The proposed model has achieved better results.