摘要
为了加快解决矿井生产接续问题和提高煤炭资源回收率,延长矿井年限及减少矿井巷道掘进工作量,并节约开采成本,对小河边煤矿110309运输巷采用了沿空留巷技术,缓解煤矿采掘接替紧张。对110309运输巷沿空留巷采取补打锚索+单体支柱托棚+U型钢+钢板网的联合支护方式,显著提高了矿井煤炭采收率。
In order to speed up the solution of mine production continuity,improve the coal recycling rate,extend the mine life,ease the workload of mine roadway excavation,and save the mining cost,the gob-side entry retaining technology was adopted for the 110309 transportation roadway of Xiaohebian Coal Mine to ease the tension between coal mining and excavation.At the same time,the support method of adding anchor cables+single pillar supporting sheds+U-shaped steel+steel plate mesh combined support was adopted for the remaining roadway along the goaf of 110309 transportation roadway,significantly improving the coal recovery rate of the mine.
作者
袁盛斌
YUAN Shengbin(Panzhou Xiaohebian Mining Co.,Ltd.,Panzhou 553507,Guizhou,China)
出处
《能源与节能》
2023年第8期108-110,113,共4页
Energy and Energy Conservation
关键词
沿空留巷
联合支护
深孔预裂爆破
gob-side entry retaining
combined support
deep hole pre-splitting blasting
