一种土与结构接触面模型的建立及其应用

在进行了一系列接触面单剪试验的基础上，分析和探讨了接触面剪切破坏和变形的机理，提出了错动位移、剪切位移以及接触面“剪切错动带”的概念。在此基础上，建立了一种新的接触面模型，并给出了确定模型参数的方法。有限元计算结果表明，该模型能够较合理地反映接触面上剪应力的传递及相对位移的发展，它比常规接触面模型有较明显的改进。

Establishment and application of a interface model between soil and structure

In this paper, based on a series of simple shear tests, the shear failure and deformation character at interface are analyzed and investigated. The idea of sliding deformation and shear deformation at interface is distinguished, and the sliding zone at interface is defined. A new interface model is established in this paper. Furthermore, the method of determining parameters of this model is proposed. Calculated results show that the new model can reflect shear stress and relative deformation at interface reasonably. It is superior to the conventional interface models.