Research on pore water pressure and residual shear strain characteristics of sand clay

Taking the sand clay as test material, the dynamic cyclic loading experiments for it with different initial consolidation levels are carried out, The history of pore water pressure and residual shear strain is studied. The prediction method of pore water pressure and residual shear strain is discussed, when the anisotropic consolidation is looked as two stress situations, i.e. initial shear stress and isotropic consolidation. And two unified models are established for the relationships between total energy dissipation and excess pore water pressure; and between residual shear strain and effective stress ratio.