魏家峁露天煤矿端帮边坡稳定性研究  

Research on end slope stability of Weijiamao Open-pit Coal Mine

作　　者：宫方伟 李昊阳 张永贵 燕东 韩义朝 GONG Fangwei;LI Haoyang;ZHANG Yonggui;YAN Dong;HAN Yichao(Inner Mongolia North Union Power Energy Development Co.,Ltd.,Huhehaote 010020,China;University of Science and Technology Beijing,Beijing 110083,China;North Weijiamao Power and Coal Co.,Ltd.,Ordos 017000,China)

机构地区：[1]内蒙古北联电能源开发有限责任公司,内蒙古呼和浩特010020 [2]北京科技大学,北京110083 [3]北方魏家峁煤电有限责任公司,内蒙古鄂尔多斯017000

出　　处：《露天采矿技术》2025年第2期60-63,共4页Opencast Mining Technology

摘　　要：为了解魏家峁露天煤矿端帮边坡的稳定性,选取了魏家峁露天煤矿端帮边坡典型工程地质剖面,综合分析得出了边坡稳定分析的岩土体物理力学指标推荐值;利用数值模拟方法分析了端帮边坡的变形破坏模式,并采用Bishop法计算了端帮边坡稳定系数。结果表明:端帮边坡潜在变形破坏模式为整体或多台阶组合式的圆弧剪切破坏模式,端帮边坡稳定系数均大于1.20,端帮边坡整体稳定。In order to understand the stability of the end slope in Weijiamao Open-pit Coal Mine,the article selects the typical engineering geological section of the end slope in Weijiamao Open-pit Coal Mine,and obtains the recommended values of physical and mechanical indexes of rock and soil mass for slope stability analysis by comprehensive analysis.The article analyzes the deformation and failure mode of the end slope by numerical simulation method,and calculates the stability coefficient of the end slope by Bishop method.The results show that the potential deformation and failure mode of the end slope is the whole or multi-step combined arc shear failure mode.The stability coefficient of the end slope is greater than 1.20,and the end slope is stable as a whole.

关 键 词：端帮 边坡稳定性 FLAC^(3D) BISHOP法 滑坡模式 

分 类 号：TD824.7[矿业工程—煤矿开采]