| 非达西渗流与采场底板突水防治 |
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| 引用本文： | 吴金随,徐慧,徐斌,尹尚先. 非达西渗流与采场底板突水防治[J]. 煤炭技术, 2014, 0(4): 23-25 |
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| 作者姓名： | 吴金随 徐慧 徐斌 尹尚先 |
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| 作者单位： | 华北科技学院基础部;华北科技学院安全工程学院 |
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| 基金项目： | 国家自然科学基金(51204069;51074075);中央高校基金(JCB2013B04) |
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| 摘 要： | 用Forcheimer型非Darcy渗流理论,从非线性动力学系统结构失稳的视角揭示了煤矿突水的机理。研究表明:矿井突水与岩层的孔隙率、颗粒直径、雷诺数及水流速度等因素有关;雷诺数Re随孔隙率ε的增大而减小;孔喉比b=0~10,雷诺数受孔喉比影响较大;孔隙率为0.2~0.5,孔喉比受孔隙率的影响较大。
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| 关 键 词： | Ergun-wu方程 孔隙率 雷诺数 孔喉比 |
Non-darcy Seepage and Stope Floor Water Inrush Prevention |
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| WU Jin-sui;XU Hui;XU Bin;YIN Shang-xian. Non-darcy Seepage and Stope Floor Water Inrush Prevention[J]. Coal Technology, 2014, 0(4): 23-25 |
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| Authors: | WU Jin-sui XU Hui XU Bin YIN Shang-xian |
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| Affiliation: | WU Jin-sui;XU Hui;XU Bin;YIN Shang-xian;Department of Basic Teaching,North China University of Science and Technology;College of Safety Engineering College of NCIST,North China University of Science and Technology; |
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| Abstract: | Using forcheimer and non-darcy seepage theory,the mechanism of water inrush is revealed from the structure of nonlinear dynamics system instability perspective.Research shows that: Mine water inrush related to the porosity of rock,particle diameter,reynolds number,and the velocity of flow etc.Reynolds number decreases with the increase of porosity.b is expressed as ratio of pore throat,when b=0~10,Reynolds number greatly influenced by ratio of pore throat.When a=0.2~0.5,the ratio of pore throat greatly influenced by porosity. |
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| Keywords: | Ergun-wu equation porosity Reynolds number ratio of pore throat |
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