Test results of surface gas extraction technology from boreholes in the goaf in Zhangbei Coal Mine, Huainan Mining Group are introduced in the paper.
本文介绍了淮南矿区张北矿地面钻孔抽采采空区瓦斯技术的试验成果。
In goaf the float coal spontaneous combustion disaster affects seriously the safe production of the coal mine.
采空区浮煤自燃灾害严重影响了煤矿的安全生产。
Except the higher content of the suspended substance in the goaf hydrops of coal mine, the other indexes of the goaf hydrops can satisfy both industrial and agricultural water consumption.
煤矿采空区积水除了悬浮物含量较高外，其他指标可以满足工农业用水。
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