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A STUDY ON SOIL-WATER CHARACTERISTIC CURVE OF UNSATURATED SOIL
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摘要: 在干旱和半干旱地区 ,土体中含水量的变化常会引发各种工程问题。研究表明 ,非饱和土的工程性质不仅取决于土的组成、结构和应力状态 ,还与土中的吸力密切相关。非饱和土的土 -水特征曲线表达了土体中含水量与吸力的关系 ,是非饱和土研究的重要内容之一。Abstract: In arid and semi-arid region, some engineering problems emerged due to the change of water content in soils. It is known that the behavior of unsaturated soil depends not only on the mineralogical composition, soil structure, and stress state, but also on soil suction. The relationships between water content and suction in the soil can be expressed as soil-water characteristic curves (SWCC). Based on the test on SWCC of an expansive soil, the result obtained by using osmotic techniques is compared with that by convenient method. The influence of the stress and suction histories on the SWCC is studied.
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Key words:
- Unsaturated soil /
- Soil-water characteristic curve /
- Suction /
- Stress.
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