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Application of Gas Drainage Technology by High Position Drilling Yard Roof Holes along Seams in NO. 2 Coal Mine of Xinji
Author(s): 
Pages: 20-22
Year: Issue:  4
Journal: SAFETY IN COAL MINES

Keyword:  高位钻场顶板走向钻孔瓦斯抽放参数优化;
Abstract: 新集二矿1808工作面8煤层瓦斯含量高、压力大,具有突出危险性.为确保安全回采,实现工作面稳产高产,采用高位钻场顶板走向钻孔抽放瓦斯;为提高钻孔有效长度,达到最佳抽放效果,对高位钻场及顶板走向钻孔技术参数进行优化与确定.
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