特厚煤层旋转工作面开采设计及分段来压规律实测分析  

Mining design of rotating working face of extra-thick coal seam and measured characteristics of pressure occurrence

作　　者：郭传清[1] 程传超[1] 张连伍 张建强 GUO Chuanqing;CHENG Chuanchao;ZHANG Lianwu;ZHANG Jianqiang(Yankuang Energy Group Co.,Ltd.,Jining No.2 Coal Mine,Jining 272012,China)

机构地区：[1]兖矿能源有限公司济宁二号煤矿,山东济宁272000

出　　处：《煤矿现代化》2023年第1期21-25,共5页Coal Mine Modernization

摘　　要：济宁二号煤矿103下03综放工作面在初采阶段按照正常推进方式回采,会滞留部分三角煤无法采出。针对该情况,首先进行了转采方案的设计及转采割煤参数的确定;然后,对现场回采过程中的矿压显现特征进行分析,获得了工作面分段来压规律及矿压显现特点。研究表明,转采方案增加了该工作面的服务年限,提高了煤炭的回采率,同时该工作面的设计方案及分段来压规律可为其它类似条件工作面提供技术参考。In 10303 working face of Jining No.2 coal mine,part of triangle coal will remain and cannot be recovered in the initial mining stage according to the normal way of advance.In view of this situation,the design of coal mining scheme and the determination of coal mining parameters are firstly carried out.Then,the characteristics of pressure occurrence in the mining process are analyzed,and the roof movement characteristics are obtained.The research shows that the rotating mining scheme increases the service life of the working face and improves the coal recovery rate.At the same time,the design scheme of the working face and the law of pressure occurrence can provide technical reference for other similar working face.

关 键 词：综放工作面 旋转开采 顶板运动规律 分段来压 

分 类 号：TD323[矿业工程—矿井建设]