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中文摘要：
自然粘土似的土壤通常结构、不饱和，它从 remolded 使他们的机械性质相当不同浸透的土壤。一个结构的组成的模型被建议模仿契约破裂微观机构。在这个模型，不饱和的土壤元素根据二进制中等理论，和压力紧张协作被划分成一个硬化元素和一个磨擦元素因为这二个元素被获得。硬化元素被认为是有弹性，而磨擦元素被认为是能与 Gallipolis 模型一起被描述的 elastoplastic。理论明确的表达与的各向同性的压缩的比较实验被验证浸透并且不饱和的结构的土壤。模型预言上的损坏变量的效果的参量的分析进一步被执行，它证明自然粘土似的土壤的那破裂变丑与起始的缺点的升起的数量增加。
英文摘要：
The natural clayey soils are usually structural and unsaturated,which makes their mechanical properties quite different from the remolded saturated soils.A structural constitutive model is proposed to simulate the bonding-breakage micro-mechanism.In this model,the unsaturated soil element is divided into a cementation element and a friction element according to the binary medium theory,and the stress-strain coordination for these two elements is obtained. The cementation element is regarded as elastic,whereas the friction element is regarded as elastoplastic which can be described with the Gallipoli＇s model.The theoretical formulation is verified with the comparative experiments of isotropic compressions on the saturated and unsaturated structural soils.Parametric analyses of the effects of damage variables on the model predictions are further carried out,which show that breakage deformation of natural clayey soils increases with the rising amount of initial defects.
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