福州大学学报（自然科学版）2017，Vol.45Issue(4)：582-588,7.DOI:10.7631/issn.1000-2243.2017.04.0582
一个考虑浅层地下水位埋深的降雨物理入渗模型
A rainfall infiltration physical model considering the depth of water table
摘要
Abstract
On the basis of the traditional Green-Ampt infiltration model,the extended infiltration model considering the depths of water table is established.Four different types of soil textures are adopted to obtain the corresponding analytical solutions and numerical solutions.The results show that the error of the ponding time is only 0.274 h and the error of relatively accumulative infiltration is 3.204％,which show that the proposed model is quite reasonable.Take the sandy loam for example,we use the validated model to analyze how the depth of the water table affects the rainwater infiltrate into unsaturated soil,the analysis shows that the infiltration rate,cumulative infiltration and the ponding time are less susceptible to the depth of water table.However,with the duration of the rainfall increase,the depth of wetting front is influenced more obviously.关键词
降雨入渗/Green-Ampt模型/地下水位/非饱和土/物理入渗模型Key words
rainfall infiltration/Green-Ampt model/water table/unsaturated soil/physical infiltration model分类
建筑与水利引用本文复制引用
豆红强,蒋森辉..一个考虑浅层地下水位埋深的降雨物理入渗模型[J].福州大学学报（自然科学版）,2017,45(4):582-588,7.基金项目
国家自然科学基金资助项目(51178423) （51178423）
福州大学科研启动基金资助项目(510164) （510164）
