哈尔乌素露天煤矿内排土场高台阶渗流稳定性分析  

Stability analysis of high steps seepage in internal dump of Ha’erwusu Open-pit Mine

作　　者：柴茂庭 刘东珲 齐翔 刘籽钰 CHAI Maoting;LIU Donghun;QI Xiang;LIU Ziyu(Ha'erwusu Open-pit Coal Mine,China Energy Group Zhunge'er Energy Co.,Ltd.,Ordos 010300,China;Junghans Bureau of Industry,Information and Technology,Ordos 010300,China;School of Mining Engineering,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]国能准能集团有限责任公司哈尔乌素露天煤矿,内蒙古鄂尔多斯010300 [2]准格尔旗工信和科技局,内蒙古鄂尔多斯010300 [3]中国矿业大学矿业工程学院,江苏徐州221116

出　　处：《露天采矿技术》2024年第1期79-83,共5页Opencast Mining Technology

摘　　要：为研究降雨渗流对哈尔乌素露天矿内排土场渗流稳定性影响,以内排土场单台阶构建模型,应用Geo-Studio软件,基于极限平衡理论的Morgenstern-Price法,计算相同雨量下4种工况下的边坡最小安全系数,评估该雨量条件下内排土场台阶稳定性。结果显示:4种工况下边坡孔隙压力变化显著,短时内边坡安全稳定性系数变化相似,最小安全系数满足生产安全规范,不存在重大生产安全隐患。In order to study the influence of rainfall seepage on the seepage stability of the internal dump of Ha’erwusu Open-pit Mine,the single step of internal dump is constructed as a model,and the Morgenstern-Price method based on the limit equilibrium theory is applied to Geo-Studio software to calculate the minimum safety coefficients of the slopes under four working conditions with the same rainfall,and to evaluate the stability of the steps of the internal dump under this rainfall condition.The results show that the change of slope pore pressure under the four working conditions is significant,the change of slope safety stability coefficient in a short period of time is similar,the minimum safety coefficient meets the production safety specification,and there is no major production safety hazard.

关 键 词：边坡稳定性 内排土场 降雨入渗 Geo-studio M-P法 

分 类 号：TD824[矿业工程—煤矿开采]