FE analysis of performance of the Lower and Upper San Femando Dams under the 1971 San Fernando earthquake

摘要

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