摘要
通过单桩离心模型试验,获得了荷载与沉降关系曲线、桩身轴力分布,研究了大直径超长桩在竖向荷载作用下,桩侧摩阻力、桩端阻力、桩身压缩变形等变化规律,分析了桩端注浆对承载特性的影响,验证了设计参数。
The load-settlement curves and distribution of pile shaft axial force of a large diameter and very long single pile are obtained through centrifugal model tests for the pile. The laws of variations of pile side friction resistance, pile tip resistance and compression-induced pile shaft deformation thereof under axial load are studied, and the effect of grouting at pile base on the bearing behavior of the pile is analyzed. Eventually, the related design parameters are verified.
出处
《桥梁建设》
EI
CSCD
北大核心
2006年第1期1-4,共4页
Bridge Construction
基金
江苏省交通科学研究计划项目(04Y029)
关键词
桥梁基础
钻孔灌注桩
大直径超长桩
承栽特性
离心模型
试验
bridge foundation
bored pile
large diameter and very long pile
bearing behavior
centrifugal model
test
