NUMERICAL ANALYSIS ON SOLID-LIQUID COUPLILNG CONSOLIDATION PROBLEMS UNDER FINITE DEFORMATION

Based on the theory of multi-phase continuous medium mechanics, a soil body is modeled as a piled continuous body. A Solid-Liquid coupling mathematical model for permeating consolidation problems under finite deformations is built up, which reflects Solid-Liquid mutual coupling. The finite element equations for Solid-Liquid biphasic medium coupling problems in finite deformations are built. Based on the automated generating system of the finite element of IFEPG, the corresponding computer programs are developed. The difference between finite deformation and small deformation in the cased pertinent to pressure field, displacement field and stress field are analyzed with different soil parameters.