通过对广能集团绿水洞煤矿6153综采工作面的瓦斯测定与分析,发现单一煤层大倾角超长综采面的瓦斯超限主要集中在上隅角、回风巷,以此作出了增大工作面风量、加强煤层瓦斯抽放等尝试措施,实践证明效果并不理想。最后决定采用密集钻孔抽放采空区瓦斯,顺利解决了上隅角、回风巷瓦斯超限问题,效果显著。 Through the gas measurement and analysis of the 6153 fully mechanized coal mining face of the Guangshui Group, the gas overrun of the fully mechanized longwall mining face with a large dip angle at a single coal seam is mainly concentrated in the upper corner and return airways, Large face air volume, strengthen gas drainage and other measures to try coal seam, the practice proved that the effect is not satisfactory. The final decision to use intensive drilling drainage mined-out area gas, successfully solved the upper corner, return airway gas over-limit problem, the effect is remarkable.