单一煤层沿空留巷工艺

Gob Side Entry Retaining Technology for the Single Seam

万吨掘进率高、煤炭回收率低、产量低等问题严重制约了单一煤层高产高效的开采,可以通过沿空留巷技术解决。因此,从留巷方法、支护、通风方式等方面探讨单一煤层沿空留巷工艺。该工艺可以减少工作面区段的煤柱,提高煤炭的资源回收率,降低煤矿的万吨掘进率和巷道维护费用。

Million tons of coal tunneling rate, low recovery rate, low yield, high yield and high efficiency seriously restrict the single coal seam by gob technology. From the left lane, support, ventilation mode, this paper discusses gob side entry retaining technology for single seam, this process can reduce the coal pillar working face section, improve resource the recovery rate of coal, reducing coal mine tunneling rate of ten thousand tons and the roadway maintenance costs.