近距离煤层开采巷道内错距离及支护技术研究与实践  

Research and Practice of Staggered Distance and Support Technology in Roadway for Close Coal Seam Mining

作　　者：杜飞雄 Du Feixiong(Xinzhou Co.,Ltd.,Shanxi Coal Transportation and Marketing Group,Xinzhou Shanxi 034000)

机构地区：[1]山西煤炭运销集团忻州有限公司,山西忻州034000

出　　处：《晋控科学技术》2023年第4期30-33,47,共5页Jinneng Holding Science and Technology

摘　　要：针对近距离采空区下巷道围岩稳定性较差、顶板易冒落的问题,以山西煤炭运销集团泰安煤业有限公司12103工作面两顺槽为背景,采用数值模拟与理论计算相结合的方法,确定了两顺槽的合理内错距离和支护技术方案,结果表明:采用确定的内错距离及支护技术方案后,顺槽整体断面的收缩率约为4.2%,有效控制了巷道围岩的变形破坏,保证了巷道的长期稳定。Aiming at the problems of poor stability of surrounding rock and easy caving of roof in roadway under close goaf,taking two roadways in 12103 working face of Tai'an Coal Industry as the research background,the reasonable internal dislocation distance and support technology scheme of two roadways are determined by combining numerical simulation with theoretical calculation.The results show that the shrinkage rate of the whole section of the roadway is about 4.2%after adopting the determined internal dislocation distance and support technology scheme,which effectively controls the deformation and failure of the surrounding rock of the roadway and ensures the long-term stability of the roadway.

关 键 词：巷道围岩 内错距离 支护技术 

分 类 号：TD353[矿业工程—矿井建设]