钱家营矿近距离煤层上行开采可行性研究  

Study on the feasibility of up-mining near coal seam in Qianjiaying Mine

作　　者：刘建军 刘建庄 靖学颖 Liu Jianjun;Liu Jianzhuang;Jing Xueying(Kailuan Energy Chemical Co.,Ltd.,Tangshan 063012,China;Hebei Key Laboratory of Mineral Development&Security Technology,North China University of Science and Technology,Tangshan 063210,China)

机构地区：[1]开滦能源化工股份有限公司,河北唐山063012 [2]华北理工大学河北省矿业开发与安全技术重点实验室,河北唐山063210

出　　处：《煤炭与化工》2022年第5期18-21,共4页Coal and Chemical Industry

摘　　要：本文以钱家营矿1692工作面为背景,采用比值判别法、“三带”判别法、围岩平衡法以及数值模拟的方法来研究9煤层上行开采的可行性。结果表明,9煤层1692工作面位于12煤层冒落带上方的裂隙带之中,受采动影响较小,煤层间距也满足了上行开采的要求。通过将上行开采和下行开采2种开采模式对比分析,得出上行开采相对下行开采而言,工作面以及巷道处于低应力区域,有利于巷道的布置和采场矿压管理。研究表明对9煤层进行上行开采具有可行性。Based on the background of No.1692 Face of Qianjiaying Coal Mine,the feasibility of upward mining of No.9 coal seam is studied by using ratio discrimination method,"three zones"discrimination method,surrounding rock balance method and numerical simulation method.The results show that the No.1692 Face of No.9 coal seam is located in the fracture zone above the caving zone of No.12 coal seam which is less affected by mining,and the distance between coal seams also meets the requirements of upward mining.Through the comparative analysis of the two mining modes of upward mining and downward mining,it is concluded that compared with the downward mining,the working face and roadway are in the low stress area,which is beneficial to the layout of roadway and stope pressure management.It can be seen from this study that the upward mining of No.9 coal seam is feasible.

关 键 词：近距离煤层 上行开采 比值判别法 数值模拟 

分 类 号：TD823[矿业工程—煤矿开采]