上隅角埋管配合架后穿层钻孔抽放瓦斯的方法在急倾斜、厚煤层中的应用

Application of Buried Pipe in Upper Corner with After Wearing Layer Drilling Method Drainage Gas in Steeply Inclined and Thick Coal Seam

对于急倾斜、厚煤层、高瓦斯的复杂煤层的上隅角瓦斯治理是很困难的,只是单纯的上隅角埋管已不能很好地解决上隅角瓦斯超限的问题,需要配合架后中、高位穿层钻孔进行瓦斯抽放,这种抽放方式在大黄山豫新煤业取得了很好的抽放效果,但是在整个过程中,由于抽放和现场治理方面存在一些问题,也会造成上隅角的瓦斯超限,需要在管理方面做好工作,综合预防瓦斯上隅角的瓦斯超限问题。

For the thick coal seam that is steeply inclined and high gassy, the control in upper corner is very difficult. Simply buried pipe in upper corner is not a very good solution to solve the problem of gas exceeding in upper corner, it is needed to cooperate with drilling cross the seam in a medium and high level to make the gas extract, which reached a good drainage effect in Dahuangshan Yuxin coal limited company, but there are some problems resulted by the gas drainage and site government in the whole process, these problems also cause the gas exceeding in upper corner, therefore, well-done management is needed to synthetically prevent the gas exceeding in upper corner.