采用有厚度接触单元对桩基沉降的研究

Research on the pile settlement considering thin interface

选用描述桩土接触面特性的有厚度接触面本构模型与土塑性特点的弹塑性本构模型 ,利用研制的二维有限元程序 ,研究了在荷载作用下桩的几何特征、物理特性与土及接触面的物理特性对桩基沉降的影响 ,得出了几点规律性的结论。

The constitutive model of interface with thickness and elastic plastic constitutive model have been employed in order to consider the behavior of interface element and the plasticity of soils. The research has been made on how the pile geometry, mechanical behavior of pile, soil mechanical behavior and interface behavior have influence on the pile settlement by 2D FEM. Subsequently, several conclusions have been drawn.