| 多孔介质上浅水流动的数学模型 |
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| 引用本文： | 张培文,刘德富,宋玉普. 多孔介质上浅水流动的数学模型[J]. 长江科学院院报, 2003, 20(3): 13-16 |
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| 作者姓名： | 张培文 刘德富 宋玉普 |
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| 作者单位： | 1. 大连理工大学,土木系,辽宁,大连,116023
2. 三峡大学,湖北,宜昌,443002 |
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| 摘 要： | 采用有限元方法，建立了多孔介质上地下渗流和地表径流的数学模型以及相互耦合的数学模型，编制了有限元分析的计算程序，并分别对渗流模型和径流模型进行了验证。给出了实际降雨强度曲线条件下，坡脚的出流过程和入渗率变化过程的模拟结果，计算结果表明，该模型为分析降雨条件下滑坡的稳定性提供了更为精确的水荷载，具有一定的工程实用价值。
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| 关 键 词： | 多孔介质 浅水流动 地下渗流 地表径流 滑坡稳定 |
| 文章编号： | 1001-5485(2003)03-0013-04 |
| 修稿时间： | 2002-10-28 |
Mathematical model of shallow water flow through porous media |
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| ZHANG Pei-Wen,LIU De-Fu,SONG Yu-Pu-. Mathematical model of shallow water flow through porous media[J]. Journal of Yangtze River Scientific Research Institute, 2003, 20(3): 13-16 |
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| Authors: | ZHANG Pei-Wen LIU De-Fu SONG Yu-Pu- |
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| Abstract: | Using FEM, mathematic models for porous medium in underground flow and on surface flow respectively, as well as their combined model were established. Corresponding FEM analysis calculation programs were compiled. The permeation flow model and surface runoff model were verified respectively. Under practical rainfall intensity curve condition, the simulated results of outflow process from slope toe and the variation process of infiltration rate were given. Calculation shows that these models provide more accurate water load for evaluating the stability of landslide and possess certain practical engineering value. |
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| Keywords: | porous medium shallow water flow underground flow surface runoff stability of landslide |
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