岩土力学2013，Vol.34Issue(6)：1753-1759,1785,8.
边坡稳定可靠度分析的广义可行方向法
Reliability analysis of slope stability based on generalized feasible direction method
摘要
Abstract
Structure reliability calculation problem which contains relevant random variables can be solved conveniently by establishing iterative formula of check point in generalized random space directly.A kind of iterative formula of check point with better convergence is derived in generalized random space; and it is applied to reliability analysis of slope stability.According to the reliability analysis of Kajiwa concrete face rockfill dam slope stability under seismic conditions,it shows that:(1) The input parameters used in safety coefficient method are determined values,so that the random fluctuation influence of parameters can not be considered in calculation.Reliability analysis can reflect the influence of randomness of parameters; it is beneficial to evaluating engineering safety and risk resistance capacity.(2)The reliability index of structure will increase by considering the earthquake and the dam slope instability probability occurring simultaneously,and the increased range is related to the probability of earthquake.(3)Nonlinear strength index of rockfill has positive correlation; the reliability of slope stability will increase when the correlation of strength index is considered.关键词
边坡稳定/可靠度/随机变量/相关Key words
slope stability / reliability / random variable / correlation分类
建筑与水利引用本文复制引用
裴亮,吴震宇,陈建康,李艳玲,张瀚..边坡稳定可靠度分析的广义可行方向法[J].岩土力学,2013,34(6):1753-1759,1785,8.基金项目
国家自然科学基金资助项目(No.51109151) （No.51109151）
中央高校基本科研业务费资助项目. （）
