三软煤层工作面瓦斯涌出规律及综合治理技术

三软煤层工作面瓦斯涌出规律及综合治理技术

牛志强 任金武

河南能源化工集团永华能源有限公司,河南偃师471923

摘　要:

郭村煤矿为“三软”低透气性煤层高瓦斯矿井，通过对工作面的不同瓦斯涌出源状况和瓦斯浓度分布规律进行分析，掌握回采工作面瓦斯涌出的状况及随时空的变化规律，据实测数据得知，落煤及煤壁瓦斯涌出占工作面瓦斯涌出的66%，采空区瓦斯涌出占39%。根据瓦斯涌出情况，采用顺层钻孔、煤墙浅孔、上隅角埋管、高位抽放孔等瓦斯综合抽放措施，有效解决了工作面的瓦斯问题。

关键词:

三软煤层 瓦斯涌出规律 瓦斯治理

分类号:　TD712.5

Law of gas emission in working face in three soft coal seam and comprehensive treatment technique

niu Zhi-qiang, Ren Jin-wu ( Henan energy chemical group Yonghua Energy Company Limited, Henan Yanshi 471923 )

Abstract:

Guo cun coal mine belongs to the "Three Soft" low permeability coal seam in high gas mine, through analyzed the working face gas emission sources and different condition of the gas concentration distribution rules, to master the gas emitted status and the changes rules with time and space, the measured data show the gas emission of Coal cutting and coal wall of working face accounted for 66%, the gob gas emission accounted for 39%. According to the gas emission, using bedding drilling, shallow hole in coal wall, buried pipe in the upper corner, high drainage hole and so on gas comprehensive drainage measures, effectively solves the problem of gas.

Keyword:

three soft coal seam;gas emission law;gas control