Strength pumping gas technology of sever outburst coal seam with low permeability

摘要: For solving the coal and gas outburst of seam with sever risk low permeability,the problem extracting in mine permeability severe is discussed taking Hongling Shengyang.According analysis actual extracting,the results show that tunnel reinforced drills at working face on the-780 level southern zone well increase reduce concentration seam,the methods mentioned above could relief risk.The technology has a given reference value guide meaning.