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| 不同掘进工艺煤与瓦斯流固耦合数值模拟研究 | |
| 引用本文： | 梁冰,李野. 不同掘进工艺煤与瓦斯流固耦合数值模拟研究[J]. 防灾减灾工程学报, 2011, 31(2): 180-184,195 |
| 作者姓名： | 梁冰 李野 |
| 作者单位： | 辽宁工程技术大学力学与工程学院; |
| 基金项目： | 国家973计划课题(2005CB221503-05)资助 |
| 摘 要： | 井下瓦斯事故严重威胁着煤矿的安全,研究煤与瓦斯耦合作用规律并采取相应措施可以有效地防止事故发生.考虑瓦斯气体的可压缩性和吸附、解吸特性,假设瓦斯气体在煤体孔隙中的流动遵循Darcy定律,建立了考虑爆破因素的煤与瓦斯流固耦合数学模型,并利用comsol对其求解.结果表明:炮掘对煤体的破坏能力大于机掘;炮掘工艺下,爆破应力... |
| 关 键 词： | 掘进面 煤层 瓦斯气体 流固耦合 数值模拟 |
Numerical Simulation of Fluid-solid Coupling of Gas in Coal Face under Different Tunneling Technics |
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| LIANG Bing,LI Ye. Numerical Simulation of Fluid-solid Coupling of Gas in Coal Face under Different Tunneling Technics[J]. Journal of Disaster Prevention and Mitigation Engineering, 2011, 31(2): 180-184,195 | |
| Authors: | LIANG Bing LI Ye |
| Affiliation: | LIANG Bing,LI Ye(Department of Mechanics and Engineering Sciences,Liaoning Technical University,Fuxin 123000,China) |
| Abstract: | The accident of coal methane gas is always to threaten the safety in coal production.Researching the interaction law between coal and gas can prevent occurrance of accident effectively.Considering compressibility,adsorption and desorption of gas,and supposing that the gas flow in pore of coal follows Darcy low,we built up a gas-solid coupling mathematical model with consideration of blasting factors.Results solved by comsol show that coal is easily destroyed by blasting excavation than machnical excavation;... |
| Keywords: | excavated section coal rake gas fluid-solid coupling numerical simulation |
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