高位钻孔瓦斯抽采是上隅角及工作面瓦斯超限治理的重要手段,文章以新安矿为研究背景,分析了影响高位钻孔瓦斯抽采效果的关键性因素,通过理论分析与计算、现场抽采试验研究了高位瓦斯抽采钻孔终孔的合理层位。研究得出:高位钻孔终孔合理层位应落在距煤层顶板15~28.1m,距风巷巷帮距离应控制在30.6~44.5m范围内。 High-level gas drainage by drilling is an important means of gas overrun control in the upper corner and working face. Based on the research background of Xin’an Mine, the paper analyzes the key factors that affect the effect of high-level gas drainage. Through theoretical analysis and calculation, On-site pumping tests studied the reasonable gas level of the upper gas drainage borehole. The research shows that the reasonable interval of high hole drilling end hole should fall within 15 ~ 28.1m from the roof of coal seam and within 30.6 ~ 44.5m from the airway laneway.