期刊
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
卷 34, 期 1, 页码 73-90出版社
WILEY
DOI: 10.1002/nag.808
关键词
unsaturated soils; effective stress; water retention curve
资金
- GACR [205/08/0732, 103/07/0678]
- MSM [0021620855]
The paper presents an approach to predicting variation of a degree of saturation in unsaturated soils with void ratio and suction. The approach is based on the effective stress principle for unsaturated soils and several underlying assumptions. It focuses on the main drying and wetting processes and does not incorporate the effects of hydraulic hysteresis. It leads to the dependency of water retention curve (WRC) on void ratio, which does not require any material parameters apart from the parameters specifying WRC for the reference void ratio. Its validity is demonstrated by comparing predictions with the experimental data on four different soils taken over from the literature. Good correlation between the measured and predicted behaviour indirectly Supports applicability of the effective stress principle for unsaturated soils. Copyright (C) 2009 John Wiley & Sons, Ltd.
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