非饱和膨胀土结构性强度的研究

Structural Strength of Unsaturated Expansive Soils

提出了非饱和膨胀土的结构性凝聚力和结构性内摩擦角的概念，给出了结构性强度的确定方法，研究了非饱和膨胀土的结构性强度与含水量和吸力的相关公式．研究结果表明，非饱和膨胀土的结构性强度是结构性凝聚力与有效凝聚力的差，结构性强度的对数与基质吸力的对数呈直线相关．

The concept of structural cohesion and structural inner frictional angle,and the method of determination of structural strength are put forward.The relationships between the structural strength and the initial water content and matrix suction of unsaturated expansive soils are studied as well.It is shown that the structural strength is the difference between the structural cohesion and the effective cohesion,and there is a linear relation ship between the logarithm of structural strength and the logarithm of matrix suction.