某露天矿山采场边坡岩体质量分析及稳定性研究  

Quality Analysis and Stability Study of Stope Slope Rock Mass in an Open-pit Mine

作　　者：周鹭 李立华 张众华 黄广黎 ZHOU Lu;LI Lihua;ZHANG Zhonghua;HUANG Guangli(Yinshan Mining Co.Ltd.,Jiangxi Copper Group;Sinosteel Maanshan General Institute of Mining Re-search Co.,Ltd.;Huawei National Engineering Research Center of High Efficiency Recycling of Metallic Mineral Resources Co.,Ltd.;State Key Laboratory of Safety and Health for Metal Mines)

机构地区：[1]江西铜业集团银山矿业有限责任公司 [2]中钢集团马鞍山矿山研究总院股份有限公司 [3]华唯金属矿产资源高效循环利用国家工程研究中心有限公司 [4]金属矿山安全与健康国家重点实验室

出　　处：《现代矿业》2024年第9期132-136,共5页Modern Mining

摘　　要：随着矿坑采剥规模以及采剥深度日益增加,露天采场局部边坡受原井下采空区影响日益凸显。以某局部边坡存在采空区的露天采矿场为例,通过采用现场调研、数值模拟以及理论分析,对露天矿山采空区开展岩体质量分析与边坡稳定性研究。结果表明,RQD法与BQ修正法对该露天采场边坡岩体分级结果较为一致,岩体质量等级以Ⅲ级为主;该露天采场边坡内部分布的采空区对边坡稳定性影响较小,边坡总体稳定性较好,数值模拟结论为露天采区后续安全稳定生产提供有利依据。With the increasing scale and depth of mining and stripping,the influence of local slope of open-pit mining is becoming more and more prominent.Taking an open-pit mine with goaf inside a partial slope as an example,the rock mass quality analysis and slope stability research are carried out through field investigation,numerical simulation and theoretical analysis.The results show that RQD method and BQ meth-od are consistent in grading the rock mass of the open-pit slope,and the rock mass quality grade of the open-pit slope is mainlyⅢ.The mined-out area distributed inside the open-pit slope has little influence on the sta-bility of the slope,and the overall stability of the slope is good.The numerical simulation conclusion provides a favorable basis for the follow-up safe and stable production of the open-pit mining area.

关 键 词：露天采场 岩体质量 边坡稳定性 数值模拟 

分 类 号：TD804[矿业工程—矿山开采]