Upper Bound Limit Method for Stability Analysis of Rock Slopes by Block Element Method
A novel upper bound limit method for rock slope stability analysis is developed in this paper. Block element method (BEM) is employed to discrete the area concerned and to construct a kinematically admissible velocity field. A nonlinear programming model for the upper bound limit of safety factor of rock slopes is formulated, in which the velocity field satisfies the constrain conditions including the Mohr-Coulomb yield criterion on the slide surface, the associated flow rule, boundary conditions, as well as the virtual work of the block system. The model is solved by the complex shape method. A wedge-block in a rock slope is studied, which verified the efficiency of the method. In the end, the application to the intake slope of Xiaowan Project shows the practicability of the method to the slope.
ZHENG Huifeng WU Guanye CHEN Shenghong
East China Investigation and Design Institution, Hangzhou Wuhan University, wuhan
国际会议
香港
英文
1-5
2009-05-19（万方平台首次上网日期，不代表论文的发表时间）