A simplified capillary hysteresis model of porous media

LI Huan; WEI Chang-fu; CHEN Hui; CHEN Pan; YI Pan-pan

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A simplified capillary hysteresis model of porous media

更新时间：2026-06-25

- A simplified capillary hysteresis model of porous media
- Vol. 32, Issue 9, (2011)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,武汉,430071
  2. 华北水利水电学院,郑州,450011
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU411.4
- Online First：13 September 2011，
  
  Published：2011
- 稿件说明：
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LI Huan, WEI Chang-fu, CHEN Hui, et al. A simplified capillary hysteresis model of porous media[J]. 2011, 32(9).
DOI：

LI Huan, WEI Chang-fu, CHEN Hui, et al. A simplified capillary hysteresis model of porous media[J]. 2011, 32(9). DOI：

摘要

土-水特征曲线的研究是非饱和孔隙介质研究的重要部分。完整的土-水特征曲线包括初始脱湿曲线（IDC）、主吸湿线(MWC)和主脱湿线(MDC)3部分。传统的土-水特征曲线实验需要花费较长的时间和精力。以文献中的试验数据为依据，对非饱和土土-水特征关系和岩石的汞注入抽出试验的滞回现象进行了深入研究，提出一个经验模型来模拟MDC曲线。如果已根据试验得到了孔隙介质的IDC和MWC，此模型只需要一个参数，即可得到增量形式的MDC。通过与试验结果相比较，验证了模型对MDC模拟的有效性。

Abstract

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

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Related Author

MA Tian-tian

WEI Chang-fu

CHEN Pan

LI Wen-tao

CAI Guo-qing

ZHAO Cheng-gang

LIU Yan

LI Huan

Related Institution

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

School of Civil Engineering, Beijing Jiaotong University

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

College of Resources and Environmental Science, North China Institute of Water Conservancy and Hydroelectric Power

College of Civil Engineering, Xinyang Normal University

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