复合边坡影响因素敏感性分析

Sensitivity analysis of composite slope effect factors

以某露天矿东帮与外排土场构成的复合边坡为研究背景,为研究东帮帮坡角、排土场帮坡角、东帮与排土场距离以及开采深度4个因素对复合边坡安全系数的影响性大小,利用正交设计进行方案设计,并利用极限平衡法进行理论分析。通过统计计算对影响因素进行敏感性分析,建立四元一次方程,得出各因素对边坡稳定性的影响大小,有利于边坡后期稳定性分析及边坡防治方案的建立。

Taking the composite slope of east slope and external dump as research background,the article researches the effect of the east slope angle,dump slope angle,the distance of east slope and dump and mining depth on composite slope safety factor,designs the scheme using the orthogonal design,and carries out theoretical analysis using the limit equilibrium method.The article carries out sensitivity analysis on influencing factors through statistical calculation,create a quadruple equation,and obtains the effect of various factors on the slope stability,which is favor for the stability analysis of slopes and the establishment of slope prevention programs.