A simplified capillary hysteresis model of porous media

被引：0

作者：

Li Huan ^{[1
,2
]}

Wei Chang-fu ^{[1
]}

Chen Hui ^{[1
]}

Chen Pan ^{[1
]}

Yi Pan-pan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China

[2] North China Inst Water Conservancy & Hydroelect, Zhengzhou 450011, Henan, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2011年 / 32卷 / 09期

关键词：

unsaturated soils; soil-water characteristic curve; capillary hysteresis; porous media; mercury inject-withdrawal test;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Soil water characteristic curve (SWCC) is one of the most important parameters for unsaturated porous media. Full SWCC is made up of 3 parts, which are initial drying curve(IDC), main drying curve(MDC) and main wetting curve(MWC) respectively. A lot of time has to be spent to perform a traditional hydralic hesteresis test. Based on the data from literatures, an empirical model is developed. Provided IDC and MWC in a certain porous media have been obtained by tests; this model, including only one material parameter, can be used to simulate an incremental-type MDC in the porous media. It is found that the simulating results agree well with the measured data; and it is shown that the proposed model is capable to describe MDC.

引用

页码：2635 / 2639

页数：5

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