神山露天矿边坡泥岩浸水剪切特性研究  

Mudstone shear characteristics of Shenshan Open-pit Mine slope under water immersion

作　　者：纪小龙 韩流[2] 王恒恒 吴先荣 陈树召[2] 陈祥宸 JI Xiaolong;HAN Liu;WANG Hengheng;WU Xianrong;CHEN Shuzhao;CHEN Xiangchen(Shenshan Open-pit Mine,CHN Energy Baotou Energy Co.,Ltd.,Ordos 017100,China;School of Mines,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]国能包头能源有限责任公司神山露天煤矿,内蒙古鄂尔多斯017100 [2]中国矿业大学矿业工程学院,江苏徐州221116

出　　处：《煤炭工程》2025年第1期182-187,共6页Coal Engineering

基　　金：国家自然科学基金面上项目(52374144);新疆维吾尔自治区重大科技专项项目(2023A01002);辽宁省自然科学基金-国家重点实验室联合开放基金项目(2022-KF-23-10)。

摘　　要：为了研究浸水条件下露天矿边坡泥岩的剪切特性,对内蒙古神山露天矿干燥与饱和状态下的三种泥岩开展了不同法向应力条件下的直剪试验,结果表明:同种泥岩在不同试验条件下及不同泥岩在相同试验条件下的宏观剪切力学特征均不同。泥岩浸水后的渗压效应是影响其剪切特性的主要力学因素。并通过数值模拟手段研究了浸水条件对神山露天矿边坡稳定性及失稳模式的影响。研究结果对神山露天矿及相似矿山的安全生产有重要参考价值。In order to study the shear characteristics of open-pit slope mudstone under the condition of flooding,direct shear tests are carried out on three kinds of mudstone under different normal stress conditions in the dry and saturated state of Shenshan Open-pit Mine in Inner Mongolia.The results show that the macroscopic shear mechanical characteristics of the same mudstone under different test conditions and different mudstones under the same test conditions are different.The osmotic effect of mudstone immersed in water is the main mechanical factor affecting its shear properties.The influence of flooding conditions on slope stability and instability mode of Shenshan Open-Pit Mine is studied by numerical simulation.The research results provide important reference value for the safety production of Shenshan Open-pit Mine and similar mines.

关 键 词：浸水条件 剪切特性 渗压效应 边坡稳定性 失稳模式 

分 类 号：TD824[矿业工程—煤矿开采] TU411[矿业工程—矿山开采]