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新安煤田高压水射流石门揭煤快速消突技术及应用 被引量:3

Fast Outburst Elimination Technology by High-pressure Water Jet Cross-cut Coal Uncovering in Xin'an Coal Field and Its Application
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摘要 为了解决新安煤田煤层突出危险性大,煤层松软,透气性差,抽采困难的状况,提出了高压水射流石门揭煤快速消突技术。通过在孟津煤矿11031运输巷揭煤工作面采用高压水射流割缝卸压增透技术,对该揭煤区域实现了高效快速瓦斯抽采,应用表明采用该技术后平均瓦斯抽采浓度提高3倍以上,平均单孔瓦斯抽采纯量提高5倍以上;采用该技术可使瓦斯抽采钻孔量缩减82%,揭煤时间缩短73%,节约了生产成本,缓解了矿井的抽、采接替矛盾。 In order to solve the problem of high coal seam outburst danger, soft coal seam, poor permeability and difficulty in ex-traction in Xin'an Coal Field, a high - pressure water - jet technology for rapid eliminating outbust of cross - cut coal was pro-posed. By using high-pressure water-jet slotting technique, the high-efficiency and rapid gas drainage is realized in this area, andthe application shows that the average gas extraction concentration is increased by 3 times, the average single-hole gas extractionvolume increased by more than 5 times; the use of the technology can reduce the gas drainage borehole 82%, uncovering coaltime reduced by 73%, saving production costs, ease the replace contradiction of mine pumping, mining.
出处 《煤矿安全》 北大核心 2017年第4期67-70,共4页 Safety in Coal Mines
关键词 新安煤田 煤与瓦斯突出 石门揭煤 高压水射流 割缝 卸压增透 Xin'an coalfield coal and gas outburst rock cross-cut coal uncovering high pressure water jet slotting pressurerelief and permeability increase
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