瓦斯异常区采煤工作面瓦斯分源抽放技术应用

Application of Source-separation Gas Drainage at Mining Face in Gas Abnormal Area

瓦斯异常区采煤工作面建立井下临时瓦斯抽放系统,根据煤层的瓦斯赋存及来源对高位钻孔、本煤层钻孔、回风隅角及后方采空区进行分源抽放,取得了较好的抽放效果,验证了瓦斯分源抽放技术的实用性。

The paper introduces the establishment of underground temporary gas drainage system at mining face in abnormal area to carry out the source-separation drainage in the high-level borehole,ventilation corner and rear goaf according to the gas occurrence and sources with good drainage effect,verifying the practicability of the gas source-separation drainage technology.