摘要
分别介绍了无煤柱护巷技术应用现状及不同的沿空掘巷方法,指出该技术有显著的经济效益,并针对某矿下山煤柱的无煤柱护巷技术的应用,提出了合适的回收方法,计算出了煤柱回收率,具有一定指导意义。
This paper respectively introduces the application status of non protection coal pillar technique and different hollow drilling methods,and points out its outstanding economic benefit.In light of the application of non protection coal pillar technique applied in the coal mine plant,it puts forward suitable recycling method,and calculates the coal pillar recycling rate,which has certain guiding meaning.
出处
《山西建筑》
2012年第8期98-99,共2页
Shanxi Architecture
关键词
无煤柱
护巷
回收率
non coal pillar
protecting roadway
recycling rate
