磁导率
统计模型
岩土工程
土壤水分
统计分析
经验模型
数学
功能(生物学)
地质学
计量经济学
应用数学
土壤科学
统计
计算机科学
模拟
化学
生物化学
进化生物学
生物
膜
作者
Eng Choon Leong,Harianto Rahardjo
出处
期刊:Journal of Geotechnical and Geoenvironmental Engineering
[American Society of Civil Engineers]
日期:1997-12-01
卷期号:123 (12): 1118-1126
被引量:253
标识
DOI:10.1061/(asce)1090-0241(1997)123:12(1118)
摘要
This paper examines the three categories of permeability functions for unsaturated soils, including empirical, macroscopic, and statistical models. The theoretical backgrounds and performance of each category are examined against various experimental data. The paper also shows that it is possible to degenerate statistical models to macroscopic models and then to empirical models. A new empirical equation for the permeability function is suggested. The statistical model demonstrates good performance and can be readily applied. In some cases the performance of the statistical model can be further improved with the introduction of a correction factor.
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