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首页> 美国政府科技报告 >Characteristics and Problems of Collapsible Soils.
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Characteristics and Problems of Collapsible Soils.

机译：湿陷性土壤的特征与问题。

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Collapsible soils are found throughout the world in soil deposits that are eolian, loessial, subaerial, colluvial, mudflow, alluvial, residual, or manmade fills. Collapsible soils are defined as any unsaturated soil that goes through a radical rearrangement of particles and greatly decreases in volume upon wetting, additional loading, or both. Typically these soils are found in arid or semiarid regions and have a loose soil structure, i.e. a large void ratio and water content far less than saturation. Typically the structure of these low-unit weights, unconsolidated sediments consists of coarser particles bonded at their contact points by the finer silt and/or clay fraction, or possibly by surface tension in the water at the air-water interfaces.

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