Earthquake Response Analysis of Embankment by Using Grid-Based Particle Method Considering Large Deformation

Abstract

Deformation analysis of embankments is often performed under small deformation conditions because the displacement is assumed to be controlled against a specific external force. However, considering the increasing severity of external seismic forces, large deformations/geometrical nonlinearities must be considered in deformation analysis. In this paper, we report the applicability of the particle method that can be applied to the analysis of the earthquake response of embankments considering slope failures, and the differences in response characteristics depending on whether geometric nonlinearities are considered. The experimental and analytical results were consistent in terms of soil mass formation and slope failure modes, indicating that the proposed method that considers geometric nonlinearity and material softening is applicable to the seismic response analysis of embankments considering slope failures.