Stability analysis of the open-pit mine slope and the study on the incensement of the slope angle

Based on the exploration of the engineering geology and the rock mechan-ics testing, limit equilibrium analysis method was adopted to calculate the stability of the Huogeqi Copper Mine slope, the results show that the original slope angle is too con-servative and the slope have the potential of more preferable slope angle. In order to discuss the possibility of slope angle enhancement, sensitivity analysis of parameters related to limit state slope was made. Quantitatively determined angle value of the add-ing and the optimal slope angle was obtained. The study having performed showed that it is not only useful for the safety control of open-pit mine slope but also for the open-pit mine design for the similar geological condition.

边坡稳定性分析与坡角加陡的综合研究

针对内蒙古霍各气铜矿原设计边坡角偏于保守的情况 ,本文通过对采场边坡稳定性分析计算 ,得出了边坡具有较大加陡潜力的结论 ,并且运用坡角敏感性分析的方法 ,确定出边坡角增加的幅度值 ,最终确定出最佳的采场边坡角 ,使矿山既能安全生产又使边坡岩石剥离量最小 ,达到最佳的经济效益。