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作 者:黄庆国[1] 李淑珍 HUANG Qing-guo;LI Shu-zhen(School of Coal Engineering,Shanxi Datong University,Datong Shanxi,037003;Library of Xinpingwang Campus,Shanxi Datong University,Datong Shanxi,037003)
机构地区:[1]山西大同大学煤炭工程学院,山西大同037003 [2]山西大同大学新平旺校区图书馆,山西大同037003
出 处:《山西大同大学学报(自然科学版)》2020年第3期68-71,86,共5页Journal of Shanxi Datong University(Natural Science Edition)
摘 要:分析了阳坡泉煤矿10号煤层的赋存条件和现有回采巷道的使用现状,确定该矿回采巷道顶板为复合顶板,巷道支护形式采用“金属网+预应力锚杆+W钢带+锚索补强”的锚固支护方式。通过理论计算得出了巷道两帮和顶板的松动破坏范围,在此基础上确定了锚杆和锚索支护参数。工程实践表明,阳坡泉煤矿10号煤层回采巷道使用过程中巷道顶帮变形小,支护形式和支护参数合理,满足综采工作面安全生产的要求。Based on the analysis of the occurrent condition of No.10 coal seam in Yangpoquan Coal Mine and the application sta⁃tus of the existing mining roadway,it is determined that the roof of the mining roadway in this mine is a composite roof,and the roadway support adopts the anchorage support method of"metal mesh+prestressed bolt+W steel belt+reinforcement by anchor cable".Based on the theoretical calculation,the damage scope of the two sides of roadway and roof is obtained,and the supporting parameters of bolt and cable are determined.The engineering practice shows that the roof deformation of No.10 coal seam in Yangpoquan Coal Mine is small,and the supporting form and supporting parameters are reasonable,which can meet the safety production requirements of fully mechanized mining face.
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