金佳矿11223工作面为一高瓦斯近距离突出煤层群下保护层工作面,瓦斯灾害严重,治理困难。为解决这一问题,制定瓦斯防治措施,采用理论分析和相似材料试验的方法,得出了其瓦斯运移通道发育过程及时空位置,进而确定了其高位瓦斯抽采巷和瓦斯抽采钻孔布置层位及抽采时机,实现了该工作面安全高效回采。 Jinjiagou 11223 working face is a coal seam near the coal seam group under the protective layer face, serious gas disasters, governance difficulties. In order to solve this problem, aiming at the prevention and control measures of gas, adopting the theoretical analysis and experiment of similar materials, the development process of gas migration path and the location of space-time are obtained, and the high gas drainage tunnel and gas drainage hole Laying layers and pumping timing, to achieve the safe and efficient mining face.