煤矿采掘场边坡角确定及其稳定性分析

Slope Angle Determination and Stability Analysis of Coal Mine's Open Pit

为确定平朔煤炭工业公司东露天煤矿采掘场的边坡角,首先选取了计算断面,对采掘场边坡稳定性进行了估算,得出了稳定性估算结论;又对台阶塌落宽度与重型设备走行位置至台阶坡顶的安全距离进行了分析,确定了台阶坡面角;最后对影响露天矿边坡稳定的其他因素进行了分析。

In order to Determine the slope angle of the East Open Pit Mine of Pingshuo Coal Industry Company,this paper selects the calculation cross-sections at first,estimates the slope stability of the open pit,and obtains the conclusion of the stability estimation; and then analyzes the step’s caving width and the safe distance of heavy equipment from its running position to step’s slope crest,and determines the step’s slope angle; and finally analyzes other factors influencing the slope stability of open pit mine.