极近距离煤层下伏回采巷道围岩控制技术研究  

Research on Surrounding Rock Control Technology for Underlying Mining Roadway in Very Close Coal Seams

作　　者：赵立克 王阁 张学启 苏渊 张志宏 王风冻 薛勇林 ZHAO Like;WANG Ge;ZHANG Xueqi;SU Yuan;ZHANG Zhihong;WANG Fengdong;XUE Yonglin(Yitai Group Co.,Ltd.,Ordos 017099,China;Taishuo Rock Stratum Control Technology Co.,Ltd.,Tai'an 271000,China;School of Mining Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]伊泰集团有限公司,内蒙古鄂尔多斯017099 [2]泰烁岩层控制科技有限公司,山东泰安271000 [3]安徽理工大学矿业工程学院,安徽淮南232001

出　　处：《煤炭技术》2024年第1期56-60,共5页Coal Technology

摘　　要：针对极近距离煤层下伏巷道支护难度大的问题,采用数值模拟、理论分析、现场实践相结合的研究方法,开展极近距离煤层开采底板下伏巷道围岩稳定性控制技术研究,得出:极近距离煤层开采底板下,将下伏回采巷道相对上覆残留煤柱中线错开12~16 m距离布置,有利于下伏回采巷道支护稳定,并在此基础上提出锚杆+金属网+金属棚架的联合支护方案,应用效果良好,为类似条件下的巷道支护提供了有意义的参考。In response to the difficulty of supporting the underlying roadway in extremely close coal seams,a research method combining numerical simulation,theoretical analysis,and engineering technology practice was adopted to conduct research on the stability control technology of the surrounding rock of the roadway under the floor of extremely close coal seam mining.It was concluded that under the floor of the extremely close coal seam mining,the underlying mining roadway should be arranged at a distance of 12-16 meters away from the centerline of the overlying residual coal pillar,which is conducive to the stability of the support of the underlying mining roadway;the proposed joint support scheme of anchor rod,metal mesh,and metal scaffolding has achieved good results,providing meaningful reference for tunnel support under similar conditions.

关 键 词：极近距离煤层 底板下伏回采巷道 围岩破坏 联合支护技术 

分 类 号：TD353[矿业工程—矿井建设]