| Study on the law of methane seepage in the wall of drainage roadway in mining seam-group |
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| 作者姓名： | 刘健 罗勇 刘泽功 石必明 |
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| 作者单位： | [1]Department of Resources Exploitation and Management Engineering, Anhui University of Science and Technology, Huainan 232001, China [2]Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, China |
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| 摘 要： | Introduction Coal gas (methane) is stored in adsorptive or free-form state in the original coal seam. The free-form methane is in pore space of coal seams and the adsorptive is adsorbed in a state of solid solution in the faces of pore space and the inner structure of coal seams. Generally, the flow law of methane in pore space accords with the diffusion law and its flow in the fracture system of coal seam conforms to Darcy law. Because the pathway of methane flow mainly consists of fracture …
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| 关 键 词： | 矿井瓦斯 甲烷渗漏 矿井排水 密闭墙 安全管理 边界地层 |
Study on the law of methane seepage in the wall of drainage roadway in mining seam-group |
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| LIU Jian , LUO Yong , LIU Ze-gong , SHI Bi-ming.Study on the law of methane seepage in the wall of drainage roadway in mining seam-group[J].Journal of Coal Science & Engineering(China),2005,11(2):64-66. |
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| Authors: | LIU Jian LUO Yong LIU Ze-gong SHI Bi-ming |
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| Abstract: | Based on the equation of the gas flow continuity and state, Darcy law and Langmuir equation, the law of methane seepage in the wall of drainage roadway was studied. The governing equation of methane one-way seepage in the seam was founded. By solving the equation, the calculation of methane seepage velocity in the coal wall was worked out. The result has really applied worth and will give beneficial references to related research, it provides preventing coal and gas outbursts with theoretical gist. |
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| Keywords: | drainage roadway methane seepage governing equation methane drainage |
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