哈拉沟煤矿复合顶板回采巷道支护技术实践  

Research on support technology of composite roof mining roadway in Halagou Coal Mine

作　　者：陈志杰 孙文 闫宁 CHEN Zhijie;SUN Wen;YAN Ning(Halagou Coal Mine,Guoneng Shendong Coal Group Co.,Ltd.,Yulin 719315,China)

机构地区：[1]国能神东煤炭集团有限责任公司哈拉沟煤矿,陕西榆林719315

出　　处：《晋控科学技术》2025年第2期35-38,共4页Jinneng Holding Science and Technology

摘　　要：以国能神东煤炭集团有限责任公司哈拉沟煤矿22404号排矸巷为研究对象,针对其回采巷道存在多层结构、层理弱面突出等复合岩层特性,研究其在复合岩层顶板中的作用机理,揭示巷道围岩变形与损伤破坏成因,采用“锚杆-锚索-金属网”组合支护技术应用到复合岩层顶板围岩中。根据现场监测结果,22404号排矸巷顶板离层状况较好,最大下沉量为19 mm,两帮最大位移为14~16 mm,保证了支护结构的稳定性。Taking No.22404 gangue roadway in Halagou Coal Mine of Guoneng Shendong Coal Group Co.,Ltd.as the research object,aiming at the characteristics of composite rock strata such as multi-layer structure and bedding weak surface outburst in its mining roadway,the mechanism of action in composite rock strata roof is studied,and the deformation and damage causes of roadway surrounding rock are revealed.The combined support technology of'bolt,anchor cable and metal mesh'is applied to the surrounding rock of composite rock strata roof.According to the field monitoring results,the roof separation condition of No.22404 gangue roadway is better,the maximum subsidence is 19 mm,and the maximum displacement of the two sides is 14 to 16 mm,which shows that the stability of the support structure is guaranteed.

关 键 词：复合顶板 支护设计 回采巷道 顶板离层 

分 类 号：TD353[矿业工程—矿井建设]