水平受荷桩的耦合算法

目前,计算水平受荷桩基时较为流行的是p-y 曲线法和Poulos 弹性理论法。本文在p-y 曲线法和Poulos 弹性理论法的基础上,提出一种能够考虑两者优点的耦合算法。根据p-y 曲线法分析得出相对于不同土体应力状态的弹性模量,利用分析得出的弹性模量,采用Poulos 弹性理论法考虑桩土之间的相互作用。实例分析表明,提出的耦合算法能够较为有效地分析水平受荷桩基。

A coupling analytical solution of piles subjected lateral loads

It is common to use the load-transfer curves (p—y curves) or Poulos’s elastic theory to calculate laterally loaded piles at present. This paper discusses the characteristics of these two methods and develops a new coupling analytical solution based on these methods. In the new method, the soil moduli along pile length are calculated by the p—y curves according the stress level and lateral displacements of soil, then the elastic theory is used to account for the soil-pile interaction between different elements using the above soil modulus. The results of the proposed coupling method is reasonable as shown by comparing lateral behavior of the pile with the above two methods.