| 摘要: |
| 采用Gardner提出的对于土壤土-水特征曲线的指数分布假设建立数学模型，通过改变边界条件，对含水层厚度为有限和无穷深的砂土和壤土，在不同非恒定降雨强度条件下土壤非饱和性状分别进行数值模拟，得出了相应的非饱和性状变化情况． |
| 关键词: 非恒定降雨 指数分布 非饱和性状 砂土 壤土 数值模拟 |
| DOI： |
| 分类号:TV139.1 |
| 基金项目: |
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| Unsaturated characteristics of sand and loam soils with unstable rainfall and infiltration |
|
SUN Yuan-yuan
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|
Nanjing Hydraulic Research Institute, Nanjing 210029, China
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| Abstract: |
| Based on the exponential distribution hypothesis for the soil-water characteristic curve of soils proposed by Gardner, a mathematical model is developed. By changing the boundary conditions, the unsaturated characteristics of sand and loam soils with finite and infinite depth of water-bearing bed under different unstable rainfall intensities are numerically modeled respectively, and the corresponding variations of unsaturated characteristics are obtained. |
| Key words: unstable rainfall exponential distribution unsaturated characteristics sandy soil loam soil numerical model |
