Seismic Stability Analysis of Slope by Finite Element Method Employing a Strain-Softening Elasto-Plastic Model

Abstract

The conventional back analysis method of a slope by circular sliding surface method taken into account c-φ parameters is investigated by finite element method employing a strain-softening elasto-plastic model. That back analysis method for a slope with a softening behavior in earthquake can not give an adequate location of circular sliding surface. Applying the seismic stability analysis using the finite element analysis, however, the critical horizontal seismic coefficient and the shear strain concentrated zone similar to the circular sliding surface, are obtained automatically.