摘要
针对大平煤矿"三软"煤层水力冲孔技术措施下,后期钻孔瓦斯抽采效率低的情况,提出了用水力冲孔配合注气强化瓦斯抽采技术。并在大平煤矿21161底抽巷进行了试验,实验结果表明,注气后瓦斯产量明显高于注气前水平,试验效果显著。
To against the condition of inefficiency gas-drainage at late stage after hydraulic flushing in＂three-soft＂ coal seam of daping mine, proposed the technology of intensify gas-drainage technology by gas injection after hydraulic flushing. Conducted a test in 21161 drainage roadway located in floor of daping mine, and the results showed that the production of gas improved obviously than before. The test was successful.
出处
《煤炭技术》
CAS
北大核心
2016年第6期218-220,共3页
Coal Technology
关键词
水力冲孔
注气
瓦斯抽采
hydraulic flushing
gas injection
gas-drainage
