| 水力冲孔快速消突技术的研究与应用 |
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| 引用本文： | 刘明举,赵文武,刘彦伟,魏建平.水力冲孔快速消突技术的研究与应用[J].煤炭科学技术,2010,38(3). |
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| 作者姓名： | 刘明举 赵文武 刘彦伟 魏建平 |
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| 作者单位： | 河南理工大学,瓦斯地质与瓦斯治理重点实验室,河南,焦作,454003 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目(2005BC221501);;“十一五”国家科技支撑计划资助项目(2006BAK03B01);;教育部“瓦斯预测与治理”创新团队发展计划资助项目(IRT0618) |
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| 摘 要： | 为提高石门揭煤和煤巷快速掘进速度,基于高压水射流破煤原理,研究了水力冲孔卸压增透的防突机理,通过理论分析、实验室研发及工业试验相结合的方法,阐述了水力冲孔的工艺流程及主要设备研发情况,并结合淮南矿区的实际条件,确定了水力冲孔的最佳破煤水压为煤的普氏系数的12~20倍。研究结果表明,在强突出煤层实施水力冲孔技术措施后,煤的弹性潜能得到释放,瓦斯压力梯度降低,有效消除了激发突出的应力,煤层的透气性增强,石门揭煤速度提高4倍,对比不同的防突措施,水力冲孔后煤巷掘进速度提高为原来的3~5倍,是中高压注水的3.3倍、是排放钻孔的2倍。
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| 关 键 词： | 水力冲孔 突出煤层 防突措施 瓦斯 水射流 |
Research and Application of Hydraulic Flushing Borehole to Quickly Eliminate Outburst |
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| LIU Ming-ju,ZHAO Wen-wu,LIU Yan-wei,WEI Jian-ping.Research and Application of Hydraulic Flushing Borehole to Quickly Eliminate Outburst[J].Coal Science and Technology,2010,38(3). |
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| Authors: | LIU Ming-ju ZHAO Wen-wu LIU Yan-wei WEI Jian-ping |
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| Affiliation: | Key Lab of Gas Geology and Gas Control/a>;Henan Polytechnic University/a>;Jiaozuo 454003/a>;China |
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| Abstract: | In order to improve the speed of the cross-cut seam opening and the gateway rapid driving,based on the coal cutting principle of high pressure water jet,the outburst prevention mechanism of the pressure released and permeability improved with the hydraulic flushing borehole was researched.With the theoretical analysis,the lab research and development as well as the industrial trial combined method,the paper stated the technique procedure of the hydraulic flushing borehole and the research and development of... |
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| Keywords: | hydraulic flushing borehole outburst seam outburst prevention and control measures gas water jet |
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