大断面切巷不稳定围岩联合支护技术应用  

Application of Combined Support Technology for Unstable Surrounding Rocks in Large-section Cut-out

作　　者：赵亚新 Zhao Ya-xin(Xinzhou Kiln Mine,Datong Coal Mine Group,Shanxi Datong 037001)

机构地区：[1]大同煤矿集团忻州窑矿生产技术科,山西大同037001

出　　处：《山东煤炭科技》2020年第5期38-39,42,共3页Shandong Coal Science and Technology

摘　　要：为了提高大断面切巷围岩稳定性,保证工作面设备安全快速安装,对8507工作面切巷顶板采取水力造穴卸压技术,对顶板提出"交错叠加式JW型钢带+走向锚索吊棚+架设"井"字型木垛"联合支护措施,对巷帮采取走向交错式锚杆支护,取得显著成效。In order to improve the stability of the surrounding rock and ensure the safety and rapid installation of the working face equipment,the hydraulic hole making and pressure relief technology is adopted for the 8507 working face roof,the combined support measures of"staggered superposition JW type steel belt+directional anchor cable hanging shed+erecting"well"shaped wood crib"are proposed for the roof,and the directional staggered anchor bolt support is adopted for the roadway side,with remarkable results.

关 键 词：切巷 卸压 支护 

分 类 号：TD353[矿业工程—矿井建设]