Seismic Permanent Deformation Analysis for Gravel Dams in High Altitude Meizoseismal Areas

Abstract It is commonly believed that the permanent deformation introduced by meizoseismal impacts of embankment dams, which impossible to be reinstated and will further endanger safety normal use thereof. In this study, a three-dimensional finite element model dam have been established with equivalent nodal force approach calculate dams under seismic protection. was indicated results acceleration response not intense in areas vertical mainly occurred at top collapse rate less than 1% small lateral horizontal deformation. Moreover, profile has inward shrinkage upon deformation, beneficial stability slopes. However, measures are required improve performance area because large tops. The research provide decision basis for hazard assessment reinforcement solutions similar dams.