摘要
阐述了地面钻孔抽放采空区瓦斯的可行性，并对地面钻孔的布孔原则、施工工艺进行了尝试，结果表明对低透气性煤层进行采后抽放能取得较好效果。
s － The feasibillity of draining gae from gobs with surface vertical holes is expounded and an attempt is made to the arrangement principle and construction process of surface holes.The results show that the gas drainage from a coal face with low gas permeability after its mining can obtain better effectiveness.
出处
《矿业安全与环保》
北大核心
2000年第4期6-7,共2页
Mining Safety & Environmental Protection
