万家寨水利枢纽大坝深层抗滑稳定可靠度灵敏分析  

Sensitivity analysis for reliability of stability against deepsliding of Dam of Wanjiazhai Water Control Project

作　　者：李振富[1] 沈怀至[1] 

机构地区：[1]天津大学建工学院水利水电工程系,天津300072

出　　处：《水文地质工程地质》2004年第1期44-46,共3页Hydrogeology & Engineering Geology

摘　　要：鉴于万家寨水利枢纽大坝地基软弱夹层试验成果的离散性 ,通过建立刚体极限平衡抗剪断理论可靠性极限状态方程 ,计算在不同工况和试验方法下大坝的抗滑稳定可靠度 ,分析其可靠度的灵敏性 ,揭示可能滑移体的稳定可靠度的变化规律 ,做出了符合实际的定量判断 ,可为工程设计人员提供可行的依据。By eslablishing a limit equation under the limit equilibrium theory, reliabilities of stability of the dam of Wanjiazhai Water Control Project are calculated for various working conditions and test methods. The variance in the reliability of stability with the changes mechanical parameters is investigated through sensitivity analysis. Quantitative evaluations are presented to designers for practicable reference.

关 键 词：深层滑动 灵敏度 可靠性指标 正态分布 抗剪强度 万家寨水利枢纽大坝 地基 软弱夹层试验 

分 类 号：TV64[水利工程—水利水电工程] TV223.31