水资源与水工程学报2009，Vol.20Issue(5)：113-116,4.
基于强度折减法的土石坝边坡稳定分析与探讨
Slope Stability Analysis of the Earth Rockfill Dam Based on the Strength Reduction Method
摘要
Abstract
In the traditional slope stability analysis of the earth rockfill dam, simplified Bishop method or Swedenarc method is usually used to calculate separately the slide safety coefficient of the upper and downstream slope, then the slope stability is evaluated according to code. The effective stress principle is applied and seepage field considered as the initial stress is imported into analysis of displacement and stress, then based on finite element strength reduction method, the whole dam body is conducted using elastic-plastic analysis, criterions of plastic zone transfixion and displacement saltation is used to get the minimum safety factor of the slope compared with the results by simplified Bishop method. The results shown that finite element strength reduction method was feasible to analyze slope stability of earth rockfill dam, but some questions still exists. Finally, two questions of the applications of finite element strength reduction method in slope stability analysis of embankment dam are preliminary studied.关键词
土石坝/稳定分析/强度折减法/渗流场Key words
earth rockfill dam/ stability analysis/ strength reduction method/ seepage field分类
建筑与水利引用本文复制引用
孙丽丽,李宗利..基于强度折减法的土石坝边坡稳定分析与探讨[J].水资源与水工程学报,2009,20(5):113-116,4.基金项目
国家自然科学基金(50779057) （50779057）
