高突矿井定向长钻孔瓦斯抽采技术应用研究

Research on the Application of Directional Long Borehole Gas Extraction Technology in High Outburst Mines

针对高瓦斯矿井在采掘生产过程中瓦斯制约难题,利用定向钻机在岩巷施工穿层定向钻孔,在煤层中施工短间距、长距离、条带式钻孔,以及在采煤工作面顺槽巷道施工区域递进式钻孔和高位定向钻孔。根据钻孔性质及采掘要求,通过定向钻孔抽放瓦斯,可促进采掘衔接平衡和矿井安全生产,应用效果显著。

In response to the problem of gas constraints in the mining and production process of high gas mines,directional drilling machines are used to construct directional boreholes through layers in rock tunnels,short spacing,long distance,and strip type boreholes in coal seams,as well as progressive and high-level directional boreholes in the construction area of the coal face along the tunnel.According to the nature of drilling and mining requirements,directional drilling for gas drainage can promote the balance of mining connection and safe production of the mine,with significant application results.