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坝基深层抗滑稳定可靠度分析蒙脱卡罗方法
引用本文:钱保国,吴彰敦. 坝基深层抗滑稳定可靠度分析蒙脱卡罗方法[J]. 红水河, 2000, 19(4): 21-25
作者姓名:钱保国  吴彰敦
作者单位:1. 南宁市计划委员会,广西,南宁,530028
2. 广西大学,广西,南宁,530004
摘    要:通过非线性有限元分析具有软弱夹层的重力坝坝基滑动破坏过程和失稳机理,论证了尾岩抗力体第二滑裂面应向下游倾斜,而不宜简单地取为直立。按建议的失稳模式,导出了主滑动面处于极限平衡的功能函数和状态方程。鉴于功能函数的复杂性,推荐应用改进的抽样蒙脱卡罗方法求解失效概率和可靠度。

关 键 词:重力坝 坝基 深层抗滑 可靠度 蒙脱卡罗方法
修稿时间:2000-07-20

Monte-Carlo Method of Analysis on Reliability of Anti-sliding Stability for the Deep Dam Foundation
QIAN Bao-guo,WU Zhang-dun. Monte-Carlo Method of Analysis on Reliability of Anti-sliding Stability for the Deep Dam Foundation[J]. Hongshui River, 2000, 19(4): 21-25
Authors:QIAN Bao-guo  WU Zhang-dun
Abstract:Having analyzed the sliding of gravity dam foundation with a weak intercalation for failure process and destabilization mechanism by the non linear finite technique ,it proved to be true that the second sliding surface in tail rock resistance block would be inclined to the downstream side but not simply vertical.According to the suggested destabilizing model the safety margin and state equation are developed.As the complex of the safety margin the solution of failure probability by the improved and sampling Monte Carlo method is recommended here.
Keywords:anti sliding for the deep dam foundation  destable model  reliability  failure probability  Monte Carlo method
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