高瓦斯矿井高位钻孔抽采技术研究

Research of High Gas Mine High Position Boring Extraction Technology

以高位钻孔抽采技术为研究对象,基于采空区覆岩沉降特征及泄压瓦斯运移规律,分析计算了高位钻场的位置,高位钻孔的仰角和方位角。以钻孔抽采瓦斯的基本原理为基础,通过对三元公司下霍煤矿高瓦斯矿井进行抽采实验,对比分析了高位钻孔与倾向高位巷抽取瓦斯的效果,对其它矿井瓦斯治理具有较大的参考价值。

Taking high hole extraction technique as the studying object,based on the characteristics of overburden subsidence and the law of drainage gas migration in goaf,the position of the high level drilling field,elevation angle and azimuth angle of the high level drilling are analyzed and calculated.based on the basic principle of gas extraction by borehole,through the experiment of gas extraction in the high-gas mine of Xia huo coal mine of Three yuan company,the effect of gas extraction by high level borehole and inclined high level roadway is compared and analyzed,which has great reference value for gas treatment in other mines.