Boundary Element Model Coupled with Finite Element Model for Dynamic Soil-Pile Interaction

The Boundary Element Method coupled with the Finite Element Method is used to model the dynamic interaction of soil – pile. The system  considered is a single pile embedded in a viscoelastic half space. The system is subjected to upward propagating harmonic shear wave. The displacement of the pile has to be found. The pile is modelled using the finite elements and the soil is modelled with boundary element. A computer program using FORTRAN is developed for the purpose of this study. A parametric study is made in this study . The parameters are the ratio of modulus of elasticity of the pile to the modulus of elasticity of the soil, length of pile, diameter of pile and frequency of the shear waves. The result of the analysis yields conclusions that give an insight into the dynamic interaction behavior of the soil-pile-structure system.