基于荷载传递法的单桩沉降解析解  

Calculation of Single Pile Settlement Based on Load Transfer Method

作　　者：刘忠[1] 唐漾[2] 杜欢欢[1] 朱思静[1] 彭刚[1] 

机构地区：[1]湘潭大学土木工程与力学学院,湖南湘潭411105 [2]湘潭大学流变力学研究所,湖南湘潭411105

出　　处：《湘潭大学自然科学学报》2013年第2期35-40,共6页Natural Science Journal of Xiangtan University

摘　　要：针对轴向荷载作用下的单桩工作特性,基于荷载传递法,采用了描述桩-土相互作用特性的双折线荷载传递函数,得到了针对桩-土变形全过程的单桩荷载-沉降关系解析解.利用该解析解,计算了具体案例,讨论了模型参数的取值范围,计算结果与实验曲线吻合较好.结果表明,本文方法能较好地描述单桩荷载传递过程,根据静载实验获得的具体参数,计算轴向荷载作用下单桩荷载-沉降关系,并估算单桩的承载力,为桩基础设计提供参考依据.In accordance with the performance characteristics of single pile under axial load and based on load transfer method, the bilinear load transfer function, which describes the characteristics of pile-soil in- teraction, is applied to obtain the analytical solution for load-settlement relation of single pile during the whole pile-soil deformation. This analytical solution is adopted in specific calculation and discussion about the value range of model parameters, the result of which agrees well with the experimental curve. It shows that the method described in this paper well describes the load transfer process of single pile. On the basis of specific parameters obtained from static load experiment, the load-settlement rclation of single pile under ax- ial load is calculated and the pile bearing capacity is estimated, which can offer references for the design of pile foundation.

关 键 词：单桩 荷载传递法 双折线荷载传递函数 荷载-沉降关系 

分 类 号：TU312[建筑科学—结构工程]