孤岛工作面回采对下伏巷道的影响研究  

Study on Influence of Isolated Island Working Face Mining on Underlying Roadway

作　　者：张涛 ZHANG Tao(Dashucun Mine,Hebei Jizhong Hanfeng Mining Co.,Ltd.,Handan 056200,China)

机构地区：[1]河北冀中邯峰矿业有限公司大淑村矿,河北邯郸056200

出　　处：《煤炭技术》2025年第3期67-69,共3页Coal Technology

摘　　要：为研究孤岛工作面回采底板破坏深度和应力分布规律对下伏巷道围岩的影响,以大淑村矿四采区为工程背景,采用理论计算、数值模拟方法,分析孤岛工作面回采后底板最大破坏深度和底板应力、位移分布规律。结果表明:孤岛工作面底板最大破坏深度为21.6 m;工作面回采后顶底板应力明显减小,下伏巷道受顶板应力集中影响得到缓解;优化工作面开采方案后下伏巷道垂直应力、水平应力和垂直位移量均明显减小。研究结果为孤岛工作面开采方案和下伏巷道布置提供参考。In order to study the influence of the damage depth and stress distribution law of the mining bottom plate on the surrounding rock of the underlying roadway,the maximum damage depth and the distribution rules of the bottom plate were analyzed by theoretical calculation and numerical simulation methods.The results showed that the maximum damage depth of the floor of the isolated island working face is 21.6 m;the stress of the vertical stress,the vertical stress and vertical displacement after optimizing the mining scheme of the working face.The research results provide a reference for the mining scheme and the layout of the underlying roadway.

关 键 词：孤岛工作面 下伏巷道 破坏深度 数值模拟 应力分布 

分 类 号：TD322[矿业工程—矿井建设]