内蒙古大苏计钼矿边坡稳定性分析与参数优化  

Slope stability analysis and parameter optimization in Inner Mongolia Dasuji Molybdenum Mine

作　　者：于娜 YU Na(China Railway 19th Bureau Group Mining Investment Co.,Ltd.,Beijing 100161,China)

机构地区：[1]中铁十九局集团矿业投资有限公司,北京100161

出　　处：《露天采矿技术》2025年第2期56-59,共4页Opencast Mining Technology

摘　　要：为研究内蒙古大苏计钼矿南排土场边坡稳定性,选取南排土场3个典型剖面,运用简化Bishop极限平衡分析法对内蒙古大苏计钼矿南排土场进行边坡现状进行稳定性分析,并对后续堆置进行优化研究。结果表明:南排土场边坡3个典型剖面现状安全系数分别为1.340、1.341、1.370,均大于最低安全系数1.34;根据不同工况下的安全系数,通过计算得出后续堆置计划推荐整体坡脚21°、调节坡面角34°、单台阶高度21 m、土台场台阶宽度25 m。In order to study the slope stability of the south dump of Dasuji Molybdenum Mine in Inner Mongolia,three typical profiles of the south dump are selected and simplified Bishop limit equilibrium analysis method is used to analyze the stability of the current slope of the south dump of Dasuji Molybdenum Mine in Inner Mongolia,and the subsequent pile optimization study is carried out.The results show that the current safety factors of the three typical sections of the slope of the south dump are 1.340,1.341 and 1.370,respectively,which are all greater than the minimum safety factor of 1.34.According to the safety factor under different working conditions,through calculation,the recommended overall slope foot of the subsequent stacking plan is 21°,the slope angle is 34°,the height of single step is 21 m,and the width of the soil yard step is 25 m.

关 键 词：排土场边坡 Bishop 安全系数 稳定性分析 堆置优化 

分 类 号：TD824.7[矿业工程—煤矿开采]