瓦斯抽放在高瓦斯矿井巷道开拓过程中的应用

Application of Gas Pump on High-gas Coal Mine Tunnel Exploit

目前在我国现有矿井总量中,高瓦斯矿井占到了20%以上,在高瓦斯矿井中,由于煤层中瓦斯含量较高,巷道开拓过程中,瓦斯涌出量多,会造成空气中瓦斯超标、超限,严重阻碍了开拓工作的正常进行。通过巷道开拓的实例,阐述了瓦斯抽放对巷道开拓的有益作用。

At present, high-gas coal mine accounted for more than 20% in the total volume of our existing mines. Since the high content of coal seam gas, in the process of exploit tunnel, multi-gas emission will cause excessive gas in the air, overrun, a serious impediment to pioneering work carried out normally. Through the tunnel exploit, the example of gas drainage of the roadway described the beneficial effects of exploit.