Abstract
Recently, coupled effective stress dynamic analysis is gradually used to calculate the residual displacement induced by the earthqueck including the possible liquefaction. The evaluation of seismic deformation performance is dependent on the finite element code, constitutive laws and its parameters, and so on, so the reliability of numerical analysis is still discussed and should be improved now. This paper proroses to use seepage analysis, static finite element analysis, and coupled effective stress dynamic analysis to calculate the deformation of Lower and Upper San Fernando Dams induced by the San Fernando Earthquake. The major slide for the Lower San Fernando Dam and the residual deformation for the Upper San Fernando dam was re-produced well.
