Cause Analysis of Abutment Toppling Deformation of a Hydropower Station in Southwest China

Abstract

Toppling deformation and failure is a typical form of instability of rock mass deformation and failure on anti-inclined slope in alpine gorge area. Based on the analysis of the distribution characteristics of the toppling deformation body in a hydropower station reservoir area in southwest China, this paper simulated the relationship between the distribution of river terraces and the toppling deformation body by using the discrete element method, and the conclusion that the influence of river downcutting on the toppling deformation is obtained.