超大直径嵌岩桩基础整体受力体系分析  

The Global Mechanical Behavior Analysis of Large-diameter Rock-socketed Pile Foundation

作　　者：龚平 戴国亮[2] 廖辉煌[2] 何泓男 

机构地区：[1]湖南省汝郴高速公路建设开发有限公司,湖南郴州423000 [2]东南大学土木工程学院,江苏南京210096

出　　处：《公路工程》2015年第1期33-38,共6页Highway Engineering

基　　金：国家973计划资助项目(2013CB036304)

摘　　要：大直径嵌岩群桩基础具有承载力高、沉降小等优点,基于赤石特大桥自平衡试桩,采用ABAQUS有限元分析软件对不同持力层刚度、承台厚度及基础上部墩身形状进行数值模拟,分析和讨论超大直径嵌岩桩基础整体受力特性。Large-diameter rock-socketed pile group foundation has the advantages of high bearing capacity and small settlement and so on. Based on self-balanced pile test of Chishi Bridge,the global mechanical behaviors of large-diameter rock-socketed pile group foundation are analyzed and simulated by the finite element software ABAQUS that taking different stiffness of bearing stratum,thickness of pile cap and shape of upper pier shaft into consideration.

关 键 词：嵌岩桩 超大直径 群桩 整体受力 ABAQUS 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]