凹山尾矿坑西北帮边坡渗流稳定性分析  

Stability Analysis of the Seepage Slope of the Northwest Side of Washan Tailings Pit

作　　者：王绍平[1] 刘兵[1] 徐进军[1] 罗长海[1] 关琳 邓国平[1] WANG Shaoping;LIU Bing;XU Jinjun;LUO Changhai;GUAN Lin;DENG Guoping(Magang(Group)Holdings Co.,Ltd.Nanshan Mining Company)

机构地区：[1]马钢(集团)控股有限公司南山矿业公司

出　　处：《现代矿业》2020年第10期184-186,190,共4页Modern Mining

摘　　要：采用节点虚流量法,对凹山采坑改建尾矿坑西北帮边坡地下水渗流进行计算;结合凹山采坑内水位的变化及长期被浸没岩体的软化作用,依据极限平衡法理论,探讨凹山采坑西北帮边坡的稳定性。结果表明,相对边坡高度,水位骤升不超过1.7 m,水位骤降不超过0.5 m时,长期被浸没岩体的边坡稳定性变化不大;但是岩体软化作用会使边坡稳定性有所降低。研究结果对类似边坡有一定的参考价值。The node virtual flow method is used to calculate the groundwater seepage on the northwest side slope of the tailing pit reconstructed from the Aoshan pit;According to the limit equilibrium method,considering the change of water level in the pit and the softening phenomenon of long-term submerged rock mass,the stability of the slope on the northwest side of the pit is discussed.The results show that when the water level rises no more than 1.7 m and the water level falls no more than 0.5 m,the slope stability of the long-term submerged rock mass does not change much;However,the softening of the rock mass will reduce the long-term stability of the slope.The research results have certain reference value for similar slopes.

关 键 词：地下水渗流 水位变化 岩体软化作用 边坡稳定性 

分 类 号：TD926.4[矿业工程—选矿]