土层参数对支盘桩承载性状影响的有限元分析

通过改变挤扩支盘桩周围不同土层的性质,用有限元方法分析了土层弹性模量对桩承载力及荷载传递过程的影响程度,研究了支盘桩桩身轴力和桩侧摩阻力沿桩长的变化规律。结果表明,支盘桩的承力盘处于不同土层中对桩承载力和荷载传递过程的影响程度不同,其中桩端土层的承载力对桩承载力影响最大,对最上层土的影响最小。

FINITE ELEMENT ANALYSIS ON SOIL DISTRIBUTION INFLUENCE TO LOAD TRANSFER OF SQUEEZED BRANCH AND PLATE PILE

The change of soil parameters around the squeezed branch and plate pile are close relative to the pile bearing capacity and load transfer mechanism. Finite method is used to analyze the pile bearing capacity and load transfer mechanism change with the Young's modulus of different soil strata. The results show that degree of influence is different for different soil. The top soil strata influence least and the bottom soil strata under pile end influence most.