华中科技大学学报（自然科学版）Issue(9)：93-97,5.DOI:10.13245/j.hust.140920
考虑参数空间变异性的边坡模糊随机可靠度分析
Fuzzy random reliability analysis of slopes considering spatial variability of soil parameters
摘要
Abstract
A fuzzy random reliability analysis method of slope stability was proposed with considera-tion of the spatial variability of soil parameters .Firstly ,soil parameters were combined by Hassan &Wolff′s method to obtain potential slip surfaces .Secondly ,spatial variations of soil parameters were described by the random field model ,and variance reductions were implemented along potential slip surfaces .Thirdly ,the fuzzy limit state of slope was described by a semi-normal distribution function , and reliability of each potential slip surface was calculated by probability integral .Finally ,the mini-mum reliability and its corresponding slip surface were searched .Through example analyses ,the in-fluences of shape parameter of the semi-normal distribution function ,correlation length of soil param-eters ,variations of cohesion and friction angle on fuzzy random reliability were investigated .关键词
边坡稳定性/空间变异性/随机场/模糊随机可靠度/临界滑面Key words
slope stability/spatial variability/random field/fuzzy random reliability/critical slip sur-f ace分类
建筑与水利引用本文复制引用
舒苏荀,龚文惠..考虑参数空间变异性的边坡模糊随机可靠度分析[J].华中科技大学学报（自然科学版）,2014,(9):93-97,5.基金项目
国家自然科学基金资助项目（51278217）． （）
