Stability analysis of a concrete gravity dam and its foundation

作     者：Itoya Emioshor 赵引 Martins Y.Otache 

作者机构：河海大学土木工程学院南京210098 河海大学水资源环境学院南京210098 

出 版 物：《Journal of Southeast University(English Edition)》 (东南大学学报（英文版）)

年 卷 期：2004年第20卷第4期

页      面：508-512页

核心收录：

学科分类：081504[工学-水利水电工程] 08[工学] 0815[工学-水利工程] 

主　　题：Concrete dams Elastoplasticity Finite element method Nonlinear equations Safety factor Sensitivity analysis Shear strength 

摘      要：The stability of dams and their foundations is an important problem to which dam engineers have paid close attention over the years. This paper presented two methods to analyze the stability of a gravity dam and its foundation. The direct analysis method was based on a rigid limit equilibrium method which regarded both dam and the rock foundation as undeformable rigid bodies. In this method, the safety factor of potential sliding surfaces was computed directly. The second method, the indirect analysis method, was based on elasto-plastic theory and employs nonlinear finite element method (FEM) in the analysis of stresses and deformation in the dam and its foundation. The determination of the safety degree of the structure was based on the convergence and abrupt the change criterion. The results obtained showed that structures constituent material behavior played an active role in the failure of engineered structures in addition to the imposed load.