整体桥扩孔桩-土相互作用有限元分析  

Finite Element Analysis of the Pre-hole Pile-soil Interaction of a Integral Abutment Bridge

作　　者：陈宏彬 董桔灿 CHEN Hongbin;DONG Jucan(Guangdong Metallurgical and Architectural Design Institute Co.,Ltd.Guangzhou 510080,China;Shenzhen Municipal Design&Research Institute Co.,Ltd.Shenzhen 518000,China)

机构地区：[1]广东省冶金建筑设计研究院有限公司,广州510080 [2]深圳市市政设计研究院有限公司,深圳518000

出　　处：《广东土木与建筑》2021年第1期48-52,共5页Guangdong Architecture Civil Engineering

摘　　要：为研究整体桥桥台扩孔桩-土相互作用,建立整体桥扩孔桩-土相互作用p-y曲线,以深圳某整体桥为原型,用有限元分析软件ABAQUS建立单桩有限元分析模型,并用试验结果验证分析模型的正确性,研究扩孔桩-土相互作用机理。分析结果表明:所建立的有限元分析模型能够很好地模拟扩桩-土相互作用,有限元分析结果与试验结果吻合较好,并根据分析结果建立了整体桥扩孔桩-土相互作用p-y曲线,研究结果可为国内整体桥设计提供参考。In order to investigate the pre-hole ipile-soil interaction and establish the p-y curve for integral abutment bridges,a finite element analysis model of the pre-hole pile-soil was established,based on an integral abutment bridge in Shenzhen.The analysis result shown that:the finite element analysis result agrees well with the experimental results,the p-y curve for pre-hole pile-soil interaction was proposed,which is well worth referring for the design of integral abutment bridges.

关 键 词：整体桥 扩孔桩 桩-土相互作用 有限元分析 P-Y曲线 

分 类 号：U443.1[建筑科学—桥梁与隧道工程]