| 穿层水力冲孔卸压增透效果的研究 |
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| 引用本文： | 李春亭,王佰顺,邵磊.穿层水力冲孔卸压增透效果的研究[J].煤炭技术,2014(4):62-64. |
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| 作者姓名： | 李春亭 王佰顺 邵磊 |
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| 作者单位： | 安徽理工大学能源与安全学院;安徽理工大学煤矿安全高效开采省部共建教育部实验室 |
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| 摘 要： | 分析了水力冲孔增透消突的机理,阐述了水力冲孔的工艺流程,以北辰矿8111工作面底板巷为试验地点,考察了水力冲孔前后抽采影响半径、煤层瓦斯含量、透气性系数、抽采瓦斯浓度和瓦斯流量的变化。并利用RFPA2D-Flow软件模拟了水力冲孔前后煤层裂隙发育过程,研究了水力冲孔后煤层应力和渗透系数对抽采效果的影响。
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| 关 键 词： | 水力冲孔 穿层钻孔 增透消突 数值模拟 |
Study on Pressure Releasing and Permeability Improced Effect with Hydraulic Borehole Flushing Passing Through Strata |
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| LI Chun-ting;WANG Bai-shun;SHAO Lei.Study on Pressure Releasing and Permeability Improced Effect with Hydraulic Borehole Flushing Passing Through Strata[J].Coal Technology,2014(4):62-64. |
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| Authors: | LI Chun-ting;WANG Bai-shun;SHAO Lei |
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| Affiliation: | LI Chun-ting;WANG Bai-shun;SHAO Lei;School of Energy and Safety,Anhui University of Science and Technology;Anhui Province and Ministry of Educations Joint Lab of Mine Safety and High Efficient Mining,Anhui University of Science and Technology; |
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| Abstract: | Analysis the mechanism of hydraulic borehole flushing permeability improvement and outburst prevention,described the process of hydraulic borehole flushing technology.Took 8111 face of the floor gateway in Beichen Mine as the test site,investigated the change of influence radius of gas drainage,gas content,coefficient of gas permeability,drainage gas concentration and gas flow before and after borehole hydraulic flushing.By using RFPA2D-Flow software to simulate the process of coal fracture with borehole hydraulic flushing,studied the effects of seam stress and seepage coefficient in the drainage results after hydraulic borehole flushing. |
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| Keywords: | hydraulic borehole flushing borehole through strata permeability improvement and outburst prevention numerical simulation |
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