摘要
为了提高煤炭资源回收率,缓解采掘接替紧张的问题,方山店坪煤矿5-200工作面采用了切顶卸压沿空留巷技术。现场应用结果表明,切顶卸压后巷道的变形量显著减小,生产综合成本下降10%~20%,经济效益显著。
In order to improve the resource recovery rate of coal and alleviate the problem of tight mining and tunnelling replacement,the technology of gob-side entry retaining by roof cutting and pressure relief was adopted in the 5-200 working face of Fangshan Dianping Coal Mine.The on-site application results show that the deformation of the roadway after roof cutting and pressure relief is significantly reduced,and the comprehensive production cost is reduced by 10%to 20%,resulting in significant economic benefits.
作者
马磊
MA Lei(Fangshan Dianping Coal Mine,Lvliangshan Coal Electricity Co.,Ltd.,Huozhou Coal Electricity Group,Fangshan 033100,Shanxi,China)
出处
《能源与节能》
2023年第9期111-113,116,共4页
Energy and Energy Conservation
关键词
沿空留巷
切顶卸压
无煤柱开采
gob-side entry retaining
roof cutting and pressure relief
coal mining without pillars
