露天煤矿边坡稳态影响因子敏感性分析及滑坡控制对策

 通过现场地质调查，对胜利露天煤矿的滑坡形成原因和主要影响因素进行了分析，确定了滑坡主要导致因素为水的作用、岩性、开挖破坏、地震动等。考虑滑坡体岩性、荷载、加固力等具体情况，采用MSARMA法对边坡排水率Dr、岩体容重RR、底滑面的CB与φB值、侧滑面的Cs与φs值以及地震动影响系数Kc等边坡稳定性的影响参数敏感性进行了分析。得出排水率和地震动是影响边坡稳定的主要诱发因素，而边坡滑体的抗剪强度和岩体容重是影响边坡稳定的环境因素的结论。依据滑坡的影响因素和边坡稳态影响因子敏感性分析，制订了胜利露天煤矿边坡“疏排降水、锚索加固、削坡卸载和远程监测”滑坡控制对策。

Sensitivity Analysis on Static Influence Factor of Open Mine Slope and Landslide Control Measures

Landslide formation causes of Shengli open coal pit and main effective factors were analyzed through state geologic investigation. The main factors inducing landslide concludes water action, rock properties, excavation breakage, earth surface shock, and so on. The sensitivity of side slope stability effective parameters, which consists of side slop drainage rate Dr, rock bulk density RR, CB andφB value of bottom slide surface, CB and φB value of side slide surface and earth surface shock effective coefficient, was studied by MSARMA method. The results show that Dr and earth surface shock are the key induction elements affecting the side slope stability. While the environment factors that impact side slope stability include shear strength of side slope gliding mass and rock bulk density. According to the above research, the landslide control policy of Shengli open coal pit is determined which are dredge lowing water, reinforcement anchor wire, chamfered slide unloading and remote monitoring.