新元矿高瓦斯煤层松软围岩沿空留巷技术  

Gob-side Entry Retaining Technology of Soft Surrounding Rock in High Gas Coal Seams of Xinyuan Coal Mine

作　　者：陈鹏鹏 CHEN Pengpeng(Shouyang Luyang Maijie Coal Industry Co.,Ltd.of Shanxi,Shouyang 045400,Shanxi,China)

机构地区：[1]山西寿阳潞阳麦捷煤业有限公司,山西寿阳045400

出　　处：《能源与节能》2023年第2期138-140,186,共4页Energy and Energy Conservation

摘　　要：新元矿瓦斯含量较高,采用的是回风巷、尾巷和配风巷三巷并掘的掘进方式,不但掘进工作量大,而且遗留了大量的煤柱。这种掘进方式严重影响了煤矿开采的效率和开采的安全性。为了缓解这种状况,在沿空留巷时新元矿开始采用高水材料进行巷旁支护。实践表明,在采用沿空留巷技术后,工作面配风量由3000m^(3)/min降至2500m^(3)/min,节省风量500m^(3)/min;采区回收率提高了14.6%,达到83.6%;沿空留巷的辅助进风顺槽整体状况较好。此次研究可以为高瓦斯煤层沿空留巷提供一定的参考。The gas content of Xinyuan Coal Mine is high,and the excavation method of simultaneously excavating air return roadway,tail roadway and air distribution roadway is used,which not only has a large amount of work,but also leaves a lot of coal pillars.This tunneling method has seriously affected the efficiency and safety of coal mining.In order to alleviate this situation,Xinyuan Coal Mine began to use high water material to support the roadway side when retaining roadway along goaf.The practical results show that after adopting gob-side entry retaining technology,the air distribution volume of working face decreased from^(3) 000 m~3/min to 2 500 m~3/min,saving 500 m~3/min;recovery rate increased by 14.6%to 83.6%;the overall condition of the gobside auxiliary air inlet groove is good.This study can provide some reference for gob-side entry retaining of high gas coal seams.

关 键 词：煤层开采 沿空留巷 高水材料 巷旁支护 

分 类 号：TD353[矿业工程—矿井建设]