土体模量对高承台超长群桩基础承载性能的影响  

Construction of Pile Foundation of Super-long Pile Group with High Modulus Performance Impact Analysis

作　　者：黄凌君 刘纪峰[1] 蒋景顺 陈续鸿 HUANG Ling-jun;LIU Ji-feng;JIANG Jing-shun;CHEN Xu-hong(School of Civil Engineering, Sanming University, Sanming 365004, China;Gaoyuan Highway Construction and Development Limited Liability Company in Sanming City, Sanming 365004, China)

机构地区：[1]三明学院建筑工程学院,福建三明365004 [2]三明市高远公路建设开发有限责任公司,福建三明365004

出　　处：《三明学院学报》2017年第6期83-88,共6页Journal of Sanming University

基　　金：福建省中青年教师教育科研项目(JAT160455)

摘　　要：应用有限元软件GTS建立高承台超长群桩模型,利用现场静载试验数据修正模型参数,并分析桩周土模量改变条件下群桩的承载能力。结果表明:超长群桩承载力较单桩有较大幅度折减,且受桩周土模量影响明显;高承台超长群桩轴力和摩阻力随桩基深度变化曲线较低承台有所不同,并随着桩周土模量改变呈规律性变化。The finite element software GTS was used to establish the model of super-long pile group.The parameters of the model were corrected by field static load test data,and the bearing capacity of pile group under the condition of soil mass change was analyzed.The results show that the bearing capacity of the super-long group pile is greatly reduced compared with that of the single pile,and the soil modulus of the pile foundation is obviously affected.The axial force and the friction resistance of the super-long pile group are different and it shows regular changes with the pile soil modulus.

关 键 词：土体模量 高承台 超长群桩 承载性能 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]