摘要
本研究提出了用盘式负压入渗仪 (Discinfiltrometer)测定的入渗数据计算土壤导水参数的一种新方法 .该方法可以用大于 10min入渗时间的任何入渗率数据计算土壤导水参数 .一种迅速准确的数值迭代法被用于解所得的高度非线形的方程组 .新方法所计算的土壤导水参数与实验室测定数据比较吻合 ,与其他计算方法相比 ,新方法所得到的导水率与宏观毛管上升高度准确合理 .
A new procedure for calculating the hydraulic conductivity and macroscopic capillary length using the data measured by disc infiltrometers is proposed. A quick and accurate iteration method is applied to solve the resultant highly nonlinear equations. The hydrualic properties calculated from this procedure are compared with those from laboratory measurement and other calculation procedures. It shows that the new procedure gives better estimation of hydraulic conductivity and macroscopic capillary length.
出处
《水利学报》
EI
CSCD
北大核心
2001年第10期12-18,共7页
Journal of Hydraulic Engineering
关键词
盘式负压入渗仪
导水参数
土壤
disc infiltrometer
hydrualic conductivity
macroscopic capillary length
