某露天矿采场边坡稳定性分析与评价  

Slope Stability Analysis and Evaluation of an Open-pit Mine

作　　者：郭马磊 GUO Malei(Xilingol League Wulantuga Coal Co.,Ltd.)

机构地区：[1]锡林郭勒盟乌兰图嘎煤炭有限责任公司,内蒙古自治区锡林浩特市026000

出　　处：《现代矿业》2025年第3期200-204,共5页Modern Mining

摘　　要：为探讨某一露天采矿场边坡的稳定性,对采场的各个边坡区进行表面变形、应力和地下水监测。监测结果表明,所有监测区域均维持在稳定状况,整体监测工作态势良好。针对边坡稳定性所固有的随机性与模糊性,以10个具有代表性的现状边坡断面及3个计划边坡断面作为分析对象,运用Geo-Slope软件进行数值模拟,计算边坡的安全系数下限,对边坡的稳定性进行全面评估。模拟结果表明,首采区、第三采区的东侧及西侧边坡安全系数设定为1.20,北侧边坡则为1.15;第二采区的东侧、北侧及西侧边坡均设定了1.20的安全系数。该采矿场潜在的滑坡模式主要为以6-1煤层顶板为滑动基面的复合型滑移和典型的圆弧形滑动。In order to explore the stability of an open-pit mine slope,surface deformation monitoring,stress monitoring and groundwater monitoring are carried out in each slope area of the stope.The monitoring results show that all monitoring areas are maintained in a stable state,and the overall monitoring situation is good.In view of the inherent randomness and fuzziness of slope stability,10 representative current slope sec-tions and 3 planned slope sections are taken as the analysis objects,and Geo-Slope software is used for nu-merical simulation to calculate the lower limit of safety factor of slope and comprehensively evaluate the sta-bility of slope.The simulation results show that the safety factor of the east and west slopes of the first mining area and the third mining area is set to 1.20,and the safety factor of the north slope is 1.15.The safety factor of 1.20 is set on the east,north and west slopes of the second mining area.The potential landslide mode of the mining field is mainly a composite slip with the 6-1 coal seam roof as the sliding base surface and a typi-cal circular arc slip.

关 键 词：露天边坡稳定性 安全系数 滑坡模式 

分 类 号：TD8[矿业工程—矿山开采]