Finite Element Analysis of Deformation of Saturated Soft Clay Foundation in Axisymmetric State

摘要

Analysis of foundation deformation is an important part in geotechnical engineering research field. Saturated soft clay has the property of high compressibility and low permeability, therefore it has great academic value and application value to improve the method analyzing deformation of soft clay foundation. In this study, through analyzing the deformation mechanism of soft clay foundation, the interrelation of instantaneous deformation and consolidation deformation of saturated soft clay foundation is studied and a computation model of instantaneous deformation and consolidation deformation is built, based on Biot Consolidation Theory. With FEM Theory, nonlinear program is composed to solve foundation deformation in axi-symmetric state and using this program, deformation of soft clay foundation with tank is analyzed. Results show that the method presented in this study is efficient and suitable in analyzing instantaneous deformation and consolidation deformation.