兰尖铁矿深凹露天矿山高陡边坡稳定性分析

为了研究外界因素对结构面控制型边坡稳定性的影响，以兰尖铁矿营盘山段边坡为工程背景，采用Geo-Slop软件，分别分析了该边坡在地下水、地震载荷以及地下水和地震载荷共同作用下的边坡稳定性，结果表明：地下水对边坡稳定性影响较小，安全系数的变化范围在0.015~0.030；地震载荷对边坡稳定性的影响较大，安全系数的变化范围在0.125~0.165；在地下水和地震载荷共同作用时，整个边坡处于临稳状态。

Stability Analysis of the High and Steep Slope in Lanjian Deep Open-pit Mine

To study the effect of external factors on the surface-controlled slope stability，this paper takes the slope of Yingpanshan section of Lanqian iron mine as engineering background，and adopts the Geo-Slop software to analyze the slope stability in groundwater，seismic loads and the interaction of underground water and seismic loads respectively. The results showed that: groundwater has less impact on slope stability with safety coefficient ranging between 0.015 and 0.030；Seismic load has greater impact on slope stability，and its safety coefficient varies between 0.125 and 0.165. Under the interaction of groundwater and seismic loads，the entire slope lies in a critical stable state.