土体本构模型评述

从理论上和实际应用上评述了土体本构模型中的弹性本构模型、弹塑性本构模型及流变本构模型的建立、应用范围和局限性，认为：目前的土体本构模型，便于计算的，过于简化而不实用，而符合实际的，参数较难测定且复杂，难于推广；当前，还没有一种能全面、正确地表述任何加载条件下的各类土体本构特征的本构模型，有必要进一步发展准确实用的土体本构理论。

Some Comments on Constitutive Model of Soil

The paper made some comments on the establishment, applied scope and limitations of elastic constitutive models, elasto plasticconstitutive models and creep constitutive models of soil. The paper concluded that some models were too simply constructed to be applied in practice while other models conforming to reality were too complicated and some of their parameters were not easy to determine, therefore it was difficult to spread and use these models. Up to now, there is no model which can overall explain constitutive characteristics of all kinds of soil in any loading condition. The paper finds it very necessary to further develop proper and practical constitutive theory of soil.