锚杆支护在采煤工作面中的应用

黑河市151煤矿有限责任公司采用了一种创新型的长壁台阶金属锚杆支护空场采煤法,实现了工作面仅打锚杆,无常规支护设备,工序衔接紧凑,煤层全厚一次采出,回采率高,空场在开采初期内无矸石,工作面工艺简单。在不适宜放顶及分层的地方煤矿有很好的推广价值。

Application of Bolt Support Technology in Coal Face

A kind of innovation long wall stair mining method with metal bolt support in the vacant place is applied in Heihe City 151 Coal Mine Co.,Ltd.. The working face only hits the anchor rod and has not the conventional support and protection equipments.The working procedure engagement was compact.The coal bed entire thick is picked one time.The recovery ratio is high.There aren't the gangue in the vacant place in the initial period of mining.The working face craft is simple.This manner has the very good promoted value in which is not suitable for the top coal caving and bedding local coal mine.