Based on the concept of bounding surface,a bounding surface plastic model for sand-structure interface is developed;it can describe the hysteretic characteristics of a shear stress and strain curve.

• 基于边界面的概念,建立了循环荷载作用下砂与结构物接触面的边界面塑性模型,以描述其剪切应力与剪应变的滞回特性。