邻近既有桥梁的路基结构设计与研究  

Design and Research of Subgrade Structure Adjacent to Existing Bridges

作　　者：王志伟[1] 孙希望[1] 李福杰 张大可[1] 石有权[1] 赵利奎 姚源帅 WANG Zhiwei;SUN Xiwang;LI Fujie;ZHANG Dake;SHI Youquan;ZHAO Likui;YAO Yuanshuai(Kunming Survey Design and Research Institute Co.,Ltd.of CREEC,Kunming 650200,China;China Railway No.5 Engineering Group Construction Engineering Co.,Ltd.,Guiyang 550002,China)

机构地区：[1]中铁二院昆明勘察设计研究院有限责任公司,昆明650200 [2]中铁五局集团建筑工程有限责任公司,贵阳550002

出　　处：《路基工程》2025年第1期133-137,共5页Subgrade Engineering

基　　金：云南省科技厅技术人才培养对象项目(202205AD160070)。

摘　　要：某铁路在既有铁路路桥衔接段出岔,为避免新建铁路道岔上桥,以路基结构与既有桥梁相邻建造,从而出现横向结构尺寸和变形受限的问题。设计采用一种能够承受竖向和横向荷载,且能有效控制结构变形的桩基托梁冠梁挡墙路基结构,研究解决新建路基与既有桥梁相衔接的问题。In order to avoid the new railway crossing the bridge,the subgrade structure is built adjacent to the existing bridge,resulting in the limitation of transverse structure size and deformation.A subgrade structure with pile foundation support beam and crown beam retaining wall,which can withstand vertical and lateral loads and effectively control structural deformation,is designed to solve the problem of connection of the new subgrade and the existing bridge.

关 键 词：增建二线 邻近既有桥 路基结构 桩基托梁 冠梁挡墙 

分 类 号：U213.1[交通运输工程—道路与铁道工程]