低位综放工作面瓦斯治理技术研究

Study on Gas Control Technology in Low-level Fully Mechanized Caving Face

为解决高瓦斯厚煤层低位综放工作面回采期间上隅角瓦斯管理困难的问题,根据工作面生产现状和瓦斯治理存在问题,在加强通风的前提下,研究改进上隅角埋管抽采、上隅角封闭抽采、回风巷顶板裂隙带抽采等新技术,取得了较好的瓦斯抽采效果,有效地控制了工作面回采期间瓦斯涌出,保证了安全生产。

In order to solve the problem of difficult gas management in upper corner of fully mechanized top-coal caving face with high gas and thick seam during mining,based on the production status and existing problems of gas control in working face,under the premise of strengthening ventilation,new technologies such as buried pipe extraction in upper corner,closed extraction in upper corner,roof fissure zone extraction in return air roadway are studied and improved,and the results are obtained.Better gas drainage effect was achieved,gas emission during mining was effectively controlled,and safety in production was ensured.