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超前密集钻孔防治煤与瓦斯突出的使用方法及注意事项河南省煤研所荀庆国安阳矿务局崔洪瑞，王麦林我国是瓦斯突出较为严重的国家之一，在诸多的防突措施中，向煤层中打钻孔，排放瓦斯，是煤巷掘进中主要的防突措施。河南省煤炭科研所在安阳矿区进行煤巷掘进防突措施的研究...
Ahead of intensive drilling to prevent the use of coal and gas outburst methods and precautions Henan Coal Institute Xun Qingguo Anyang Mining Bureau Cui Hongrui, Wang Meilin China is one of the more serious gas outburst in many measures to prevent outburst in the coal Borehole drilling, gas drainage is the main outburst prevention measures in coal roadway. Coal Research Institute of Henan Province in Anyang mining excavation prevention measures against the ...