【摘要】 消除突出煤层的突出危险性是煤与瓦斯突出矿井治理瓦斯的主要任务。本文以建新矿1018顺槽底板抽放巷为例,介绍了该矿通过合理布置底板岩巷和穿层抽放钻孔,提高封孔质量及孔口负压进行瓦斯抽放有效消除单一突出煤层煤巷掘进期间突出危险的实践经验,确保了安全生产。更多还原

【Abstract】 Eliminating the prominent danger of outburst seam is fundamental to gas control in collieries with coal and gas outburst.The paper introduces the practical experiences in Jianxi Colliery by rational layout of floor hard heading and crossing hole to improve the hole-packing quality and draw out gas with negative pressure,which have effectively eliminated the prominent danger during the heading at single outburst seam and guaranteed the production safety.更多还原