| 填埋场中气体运移的非稳定耦合渗流数学模型 |
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| 引用本文： | 薛强,梁冰,刘晓丽.填埋场中气体运移的非稳定耦合渗流数学模型[J].岩土力学,2002,23(2):191-195. |
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| 作者姓名： | 薛强 梁冰 刘晓丽 |
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| 作者单位： | 辽宁工程技术大学力学与工程科学系,辽宁,阜新,123000 |
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| 基金项目： | 辽宁省自然科学技术基金资助项目(2001101063)，国家教育部资助项目(2000172) |
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| 摘 要： | 基于多孔介质渗流力学和流固耦合理论，建立了填埋场内挥发性气体在土壤中迁移气－固耦合数学模型，并根据数学模型的非线性特征，采用摄动法求出模型的拟解析解。通过解析求解研究了挥发性气体在土壤中耦合与非耦合渗流情况下孔隙压力分布动态特征，为预测和预报挥发性气体在土壤中的扩散状况，以及对环境污染的治理，控制污染的扩散理论了理论依据。
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| 关 键 词： | 非稳定渗流 气体运移 摄动解 数学模型 填埋场 土壤 孔隙压力 垃圾 |
| 文章编号： | 1000-7598-(2002)02-0191-05 |
| 修稿时间： | 2001年6月4日 |
Research of unsteady seepage coupling mathematical model and gas migration in landfill |
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| XUE Qiang,LIANG Bing,LIU Xiao-li.Research of unsteady seepage coupling mathematical model and gas migration in landfill[J].Rock and Soil Mechanics,2002,23(2):191-195. |
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| Authors: | XUE Qiang LIANG Bing LIU Xiao-li |
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| Abstract: | Based on the theory of mechanics of porous seepage and the theory of fluid-solid interaction mechanics,a coupled mathematical model of gas -solid about the volatile gas transferring in soil of landfill is established;and the perturbation approach is adopted to get the analytical solution in accordance with the character of the nonlinear mathematical model.Pore pressure along level distance is discussed when coupled and non-coupled seepage of volatile gas transferring in soil is taken place.The theoretical evidence is provided for forecasting diffusion of volatile gas in soil and pollution control. |
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| Keywords: | unsteady seepage flow gas migration perturbation solution mathematical model |
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