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Taoshan Coal Mine Gas Drainage 427 Machine Face Research and Practice
Author(s): 
Pages: 29-30
Year: Issue:  2
Journal: Coal

Abstract: 针对桃山煤矿427机采工作面瓦斯经常超限、风排无效的情况,在分析覆岩瓦斯运移规律与瓦斯源基础上,采取仰角钻孔瓦斯抽放和高位钻场瓦斯抽放相结合的综合抽放方式,有效控制了工作面瓦斯经常超限报警断电的现象,保证了矿井安全生产.
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