| 考虑吸湿和脱湿影响的一维降雨入渗数值模拟 |
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| 引用本文： | 汤维,张华.考虑吸湿和脱湿影响的一维降雨入渗数值模拟[J].三峡大学学报(自然科学版),2010,32(5):52-56. |
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| 作者姓名： | 汤维 张华 |
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| 作者单位： | 三峡大学土木与建筑学院,湖北宜昌443002 |
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| 摘 要： | 在分析非饱和渗流时,土水特征曲线(SWCC)起着至关重要的作用.吸湿和脱湿条件下的土水特征曲线存在显著的滞后现象,对降雨入渗土体中孔隙水压力的分布有明显影响.采用两种计算模型,运用吸湿和脱湿条件下的土水特征曲线,对一维降雨入渗土体非饱和-饱和-非饱和全过程进行数值模拟,对比分析了计算模型以及吸湿和脱湿,对降雨入渗过程中土体的孔隙水压力分布的影响.
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| 关 键 词： | 土水特征曲线 吸湿脱湿 降雨入渗 数值模拟 |
One-Dimensional Numerical Simulation of Rainfall Infiltration Considering Effect of Moisture Absorption and Removal |
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| Tang Wei,Zhang Hua.One-Dimensional Numerical Simulation of Rainfall Infiltration Considering Effect of Moisture Absorption and Removal[J].Journal of China Three Gorges University(Natural Sciences),2010,32(5):52-56. |
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| Authors: | Tang Wei Zhang Hua |
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| Institution: | (College of Civil Engineering ＆ Architecture,China Three Gorges Univ.,Yichang 443002,China) |
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| Abstract: | When the analysis of unsaturated seepage flow,soil water characteristic curve（SWCC） plays a vital role.Moisture absorption and removal conditions of the soil water characteristic curve after the remarkable phenomena of the existence of rainfall infiltration in soil pore water pressure has significant influence.Two model systems are applied under the conditions of moisture absorption and removal the soil water characteristic curve,on the one-dimensional infiltration in unsaturated soil-saturated-unsaturated to simulate the whole process of comparative analysis of the calculation model and the absorption and removal wet,the rainfall infiltration Turkish body distribution of pore water pressure. |
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| Keywords: | soil water characteristic curve moisture absorption and removal rainfall infiltration numerical simulation |
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