岩土力学Issue(2)：576-583,8.DOI:10.16285/j.rsm.2015.02.038
顺层岩质边坡稳定性极限分析上限法
Upper bound limit analysis method for stability analysis of bedding rock slopes
摘要
Abstract
Using the theory of upper bound limit analysis method and the volume force increment method, considering the defects of limit analysis model of a single sliding surface,anarbitrary block model considering the dislocation effects of multiple rock layers with structural joints is established. When the rock mass reaches the limit state (destruction) under external load, the work that is done by external loads is equal to the work that rock mass absorbs. Based on this premise, relevant equation can be established; thereby the calculation formula of slope stability coefficient can be derived. After analyzing typical numerical examples of slope and comparing to results of discrete element numerical simulation, the feasibility and applicability of this method are verified. A calculation of bedding rock slope located in Puli-Xuanwei highway in Yunnan province is achieved, the result shows that the stability coefficient is close to the result obtained from discrete element numerical simulation. The coefficient is slightly larger, but the slope is stable. It provides a new calculation method for evaluating the stability of this kind of slope.关键词
顺层岩质边坡/极限分析/上限法/稳定性分析Key words
bedding rock slope/limit analysis/upper bound method/stability analysis分类
建筑与水利引用本文复制引用
王智德,夏元友,夏国邦,李敬东,杨金华..顺层岩质边坡稳定性极限分析上限法[J].岩土力学,2015,(2):576-583,8.基金项目
国家自然科学基金面上项目（No.51374163）；云南省交通运输厅2010科技专项（[云交科No.2010(A)07-a]）。 （A）
