三软煤层回采工作面区域消突技术研究
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摘要
为保证工作面掘进与回采期间的安全生产,采取实验室手段对13采区的瓦斯基础参数及赋存规律进行了试验,并提出顺层钻孔全钻孔套管瓦斯抽采技术与底板岩巷穿层钻孔抽采技术相结合的瓦斯综合抽采手段。经三个月的预抽,工作面掘进回采期间的总抽采量为14.68m3/min,残余瓦斯含量达到4.69m3/t。
In order to ensure the safe production during the excavation and mining of working face, the basic parameters and occurrence law of gas in 13 mining areas were tested by laboratory methods, and a comprehensive gas extraction method combining the whole borehole gas extraction technology along the seam with the borehole gas extraction technology through the seam in the floor rock roadway was put forward. After three months of predrainage, the total amount of gas extracted during heading and mining is 14.68m3/min, and the residual gas content is 4.69m3/t.
In order to ensure the safe production during the excavation and mining of working face, the basic parameters and occurrence law of gas in 13 mining areas were tested by laboratory methods, and a comprehensive gas extraction method combining the whole borehole gas extraction technology along the seam with the borehole gas extraction technology through the seam in the floor rock roadway was put forward. After three months of predrainage, the total amount of gas extracted during heading and mining is 14.68m3/min, and the residual gas content is 4.69m3/t.
引文
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[2]宁德义.我国煤矿瓦斯防治技术的研究进展及发展方向[J].煤矿安全,2016,47(02):161-165.
[3]朱丽媛,李忠华,刘瀚琦.深部开采煤岩瓦斯动力灾害统一发生机制及监测技术[J].安全与环境学报,2017,17(03):937-942.
[4]倪廉钦,王佰顺,胡祖祥.底板穿层钻孔预抽煤层瓦斯消突技术在张集矿的应用[J].煤矿开采,2015,20(06):108-111.
[5]刘伟.水力压裂增透消突技术的应用研究[J].能源与环保,2017,39(11):284-287.
[6]王兆丰.我国煤矿瓦斯抽放存在的问题及对策探讨[J].煤矿安全,2005,36(03):29-32+44.