利用抽采技术治理回采工作面采空区瓦斯工艺的研究

Study on gas control technology in goaf of mining face by using extraction technology

为了治理煤与瓦斯突出矿井放顶煤回采工作面瓦斯,以大淑村矿近几年的治理手段为背景,结合实际应用情况,对抽采效果进行对比探讨,综合分析得出了3种抽采采空区瓦斯工艺中,高顶巷和高位定向长钻孔抽采纯量稳定,效果良好,且高位定向长钻孔成本仅为高顶巷的20%,因此采用高位定向长钻孔抽采采空区瓦斯工艺较优,为今后在治理煤与瓦斯突出矿井放顶煤回采工作面瓦斯中提供参考。

In order to control the gas in the top coal caving mining face of coal and gas outburst mines,based on the treatment methods of Dashucun Mine in recent years,combined with the actual application situation,the extraction effects are compared and discussed.The comprehensive analysis shows that among the three kinds of gas extraction technologies in goaf,the extraction of high-top roadway and high-level directional long borehole is stable and effective,and the cost of high-level directional long borehole is only 20%of that of high-top roadway.Therefore,the high-level directional long borehole gas extraction technology is better,which provides a reference for the future gas control in the top coal caving mining face of coal and gas outburst mines.