| 厚煤层钻墙边掘边抽瓦斯技术试验研究 |
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| 引用本文： | 王兆丰,黄河,徐东方. 厚煤层钻墙边掘边抽瓦斯技术试验研究[J]. 煤炭科学技术, 2009, 37(4) |
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| 作者姓名： | 王兆丰 黄河 徐东方 |
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| 作者单位： | 王兆丰,徐东方,WANG Zhao-feng,XU Dong-fang(河南理工大学,安全科学与工程学院,河南,焦作,454003);黄河,HUANG He(铜川矿务局,陕西,铜川,727000) |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划)，河南省重大科技攻关项目 |
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| 摘 要： | 为了解决在中厚煤层煤巷掘进采用平面扇形布孔边掘边抽瓦斯技术治理效果不理想的问题,在陈家山煤矿进行了钻墙边掘边抽瓦斯技术的现场试验研究,钻墙边掘边抽钻孔克服了平面扇形边掘边抽钻孔由于受抽放有效半径的制约而不能控制厚煤层煤壁全厚的缺陷,采用了钻墙边掘边抽瓦斯技术后,陈家山煤矿的试验巷帮瓦斯涌出截流率达到75%以上,能有效防止厚煤层煤巷掘进面瓦斯起限.
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| 关 键 词： | 瓦斯超限 厚煤层 钻墙边掘边抽 截流 |
Experiment Research on Excavation and Gas Drainage Simultaneously in Thick Seam Wall Drilling |
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| WANG Zhao-feng,HUANG He,XU Dong-fang. Experiment Research on Excavation and Gas Drainage Simultaneously in Thick Seam Wall Drilling[J]. Coal Science and Technology, 2009, 37(4) |
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| Authors: | WANG Zhao-feng HUANG He XU Dong-fang |
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| Affiliation: | 1.School of Safety Science and Engineering;Henan Polytechnic University;Jiaozuo 454003;China;2.Tongchuan Mining Group;Tongchuan 727000;China |
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| Abstract: | In order to solve the irrational problem of control result for the excavation and gas drainage technology simultaneously with the plane fan type borehole drilling pattern for the medium thick seam gateway driving,a site experiment research on the excavation and gas drainage technology simultaneously in the coal wall drilling in Chenjiashan Mine was conducted.The excavation and gas drainage simultaneously at the coal wall drilling could overcome the limitation of the effective drainage radius and the no full... |
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| Keywords: | gas over limit thick seam excavation and gas drainage simultaneously at coal wall drilling cut-off |
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