Application of scaled boundary finite element method on soil-structure interaction: two dimensions dynamic coupled consolidation analysis of fully saturated soils

The scaled boundary finite element method (SBFEM) combines the advantages of finite element method (FEM) and boundary element method (BEM). Therefore, it is considered as a powerful tool to analyse the soil-structure interaction problems. In this research, this method is extended to include Biot's coupled consolidation in order to deal with fully saturated soil as two-phase medium. The general 2D dynamic analysis case, including body forces and surface tractions in different media in the frequency domain, is formulated. In addition, Chebyshev pseudospectral method is introduced for solving the FE coupled consolidation equations