综采面回撤通道的掘进与围岩变形影响分析  

Withdrawal Roadway Tunneling and Influential Analysis of Surrounding Rock Deformation

作　　者：韩斌权 Han Binquan(Shanxi Gaoping Kexing Xinzhuang Coal Industry Co.,Ltd.,Gaoping,Shanxi 048400)

机构地区：[1]山西高平科兴新庄煤业有限公司,山西高平048400

出　　处：《江西煤炭科技》2024年第3期58-60,共3页Jiangxi Coal Science & Technology

摘　　要：以枣泉煤矿综采工作面回撤通道的施工方式为工程实例;拟定“预掘回撤通道、采煤机截煤形成回撤通道和分步掘进形成回撤通道”三种施工方案进行了比较,认为预掘回撤通道变形大、维护成本高,采煤机截割煤层形成回撤巷道存在容易出现冒落、煤壁易片帮、支护困难等问题,而分步掘进形成回撤通道方式解决了预掘回撤通道顶板下沉量大、支护困难,以及采煤机截煤形成回撤通道时顶板支护实施困难的问题,效果最佳;另外,回撤巷道距离工作面的距离越近,顶板、底板和侧帮变形变化越明显;回撤巷道分步掘进施工方式具有显著的技术优势。The paper probes into the tunneling method of withdrawal roadway by comparison of three construction methods--advanced tunneling withdrawal roadway with large deformation and high maintenance cost,forming withdrawal roadway through coal cutting by roadheader with roof falling,rib spalling and difficult support,and forming withdrawal roadway by stepped tunneling which can solve the problems of large roof subsidence and difficult roof support with remarkable technological advantages.

关 键 词：综采工作面 回撤巷道 掘进方式 围岩变形 

分 类 号：TD322[矿业工程—矿井建设] TD263.3