孤岛仰采工作面煤壁片帮分析与治理  

Analysis and Control of Rib Spalling of Coal Wall in Isolated Upward Mining Face

作　　者：李立[1] 张世青[1] 赵健健[1] 张春雷[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《煤炭工程》2014年第7期81-84,共4页Coal Engineering

基　　金：国家重点基础研究发展计划(973计划)资助项目(2011CB201204);中央高校基本科研业务费资助项目(2011YZ05)

摘　　要：梧桐庄矿182309工作面是孤岛仰采工作面,仰采角度大,矿压显现明显,煤壁极易片帮。针对以上问题,以梧桐庄矿182309工作面为工程背景,采用FLAC3D和UDEC数值模拟软件模拟分析了工作面周围的应力分布情况和煤壁片帮情况。在此基础上,工作面采用了超前预注浆加固技术措施,有效地控制了煤壁片帮现象。Wutongzhuang coal mine No. 182309 mining face was an isolated upward mining face, with large upwardmining angle, obvious strata pressure behaviors and frequent rib spalling phenomenon of coal wall. Aiming at theseproblems, taking Wutongzhuang No. 182309 mining face as engineering background, stress distribution near the miningface and rib spalling condition of coal wall were analyzed applying FLAC3D and UDEC. According to the results, pre -grouting technology was applied, and the rib spalling condition of coal wall was controlled effectively.

关 键 词：孤岛工作面 仰采 数值模拟 煤壁片帮 

分 类 号：TD323[矿业工程—矿井建设]