| 高应力区硬煤层巷道钻煤粉卸压技术分析 |
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| 引用本文： | 易恩兵,牟宗龙,温颖远.高应力区硬煤层巷道钻煤粉卸压技术分析[J].煤炭技术,2014(4):11-14. |
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| 作者姓名： | 易恩兵 牟宗龙 温颖远 |
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| 作者单位： | 瓦斯灾害监控与应急技术国家重点实验室;中煤科工集团重庆研究院有限公司;中国矿业大学矿业工程学院;新疆大学地质与矿业工程学院 |
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| 基金项目： | 中煤科工集团重庆研究院有限公司青年创新基金项目(2013QNJJ36) |
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| 摘 要： | 针对高应力区硬煤层巷道,由于难以注水,采用传统煤体爆破和大直径钻孔卸压方式往往不能将冲击危险降低到可接受水平。通过现场试验,提出了一种钻煤粉卸压技术,其特点是采用小直径、小孔间距的钻孔钻出大量煤粉,其原理类似于使煤层巷道围岩产生大变形,变"硬"煤为"软"煤,其效果使高应力区煤体得以有效卸压,降低和解除冲击危险,保证工作面安全生产。
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| 关 键 词： | 冲击地压 高应力 硬煤 钻煤粉 卸压 |
Analysis on Drilling Pressure Relief Technical Under High Stress Area in Coal Roadway |
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| YI En-bing;MU Zong-long;WEN Ying-yuan.Analysis on Drilling Pressure Relief Technical Under High Stress Area in Coal Roadway[J].Coal Technology,2014(4):11-14. |
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| Authors: | YI En-bing;MU Zong-long;WEN Ying-yuan |
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| Affiliation: | YI En-bing;MU Zong-long;WEN Ying-yuan;State Key Laboratory of the Gas Disaster Detecting Preventing and Emergency Controlling;Chongqing Research Institute Co.,Ltd.,China Coal Technology Engineering Group;School of Mining Engineering,China University of Mining and Technology;Institute of Geology and Mines Engineering,Xinjiang University; |
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| Abstract: | Aimed at high stress area in hard coal seam roadway,due to the difficult to water injection,the traditional coal blasting and large diameter borehole pressure relief way often impact can not be reduced to an acceptable risk level.Through the field test,this paper proposes a pulverized coal unloading drill technology,the characteristic is used to small diameter,hole spacing of the borehole drilled a large number of pulverized coal,the principle is similar to make coal seam to produce large deformation of roadway surrounding rock,change the coal seam from hard to soft,the effect of pressure relief in high stress area,reducing and removing the danger,to guarantee the safe production during the mining face. |
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| Keywords: | rock burst high stress hard coal drilling cutting pressure relief |
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