均质土壤上升毛管水运动特性试验  

Rising Capillary Water Transport Characteristics of Homogeneous Soil

作　　者：何克瑾[1] 费良军[1] 尹娟[1] 

机构地区：[1]西安理工大学水资源研究所,西安710048

出　　处：《沈阳农业大学学报》2007年第4期581-585,共5页Journal of Shenyang Agricultural University

基　　金：国家自然科学基金项目(50579064);国家自然科学基金项目(50179030)

摘　　要：将Green-Ampt模型用于均质土壤毛管水上升过程分析中,通过室内土柱模拟试验,对均质土毛管水运动特性进行了研究。结果表明:均质土毛管水上升高度和地下水补给量均与时间之间为幂函数关系,毛管水上升速度和地下水补给速率也均与时间呈幂函数关系,毛管水上升高度与地下水补给量之间呈明显的线性关系,毛管水上升速度与地下水补给速率也呈线性关系;通过试验资料可以推求有关参数;说明入渗条件下的Green-Ampt模型用于模拟均质土的毛管水上升过程是可行的。Green-Ampt model can be applied in analyzing capillary water rise process of homogeneous soil. A laboratory experiment was conducted for capillary soil transport characteristics of homogeneous soil. The results showed that there was power function relationship between the capillary water rise height and groundwater supply quantity and the time. There was linear function relationship between capillary water rise height and groundwater supply quantity and a power function between them and the time. There was linear function relationship between the capillary water rise velocity and the groundwater supply rate. Parameters could be calculated by measured data, which showed that it is possible to simulate capillary water rise process of homoge- neous soil by Green-Ampt model.

关 键 词：均质土 GREEN-AMPT模型 上升毛管水 运动特性 

分 类 号：S274.2[农业科学—农业水土工程]