综放面本煤层预抽瓦斯的治理技术

Gas Control Technology of Fully Mechanized Caving Face on Pre-drainage of Coal Seam

为了极大限度地提高本煤层预抽效果,以马兰煤矿为研究对象,针对目前马兰煤矿的瓦斯赋存情况和现阶段所采取的抽放措施,从抽放钻孔的孔径、孔深、布置方式、封孔质量和增加煤层透气性等方面进行探索。实践表明,以上方法的运用,能够有效地提高本煤层预抽抽放效果,保证工作面安全生产。

In order to maximize the effect of pre-drainage in this coal seam,this paper takes Malan Coal Mine as the research object,aiming at the gas occurrence situation in Malan Coal Mine and the drainage measures adopted at this stage,explores the hole diameter,hole depth,layout,sealing quality and increasing coal seam permeability of drainage boreholes.Practice shows that the above methods can be used effectively.To improve the pre-drainage effect of coal seam and ensure the safe production of working face.