回采工作面上隅角瓦斯涌出异常与防治对策

Abnormal Gas Emission and Control Measures in Upper Corners of Mining Face

回采工作面上隅角是井下局部瓦斯积聚最为严重的部位。目前,瓦斯治理技术上的上隅角瓦斯积聚问题始终不能得到解决,对井下安全生产状况构成极大威胁。针对瓦斯常见问题,通过研究采取采空区、上隅角抽放,上隅角封堵等措施,有效解决了瓦斯问题,实现了安全高效生产。

As the worst part of local gas accumulation, the upper corners of mining face severely threaten the safe production in the coal mine. The research on gas extraction of gob and upper corners, sealing upper corners, and other control measures effectively solves the gas problem, which could realize the safe and efficient production in the mine.