框架桥扎头纠偏施工技术  

Construction Technology for Correcting Deviation of Frame Bridge Tie Heads

作　　者：周荣铁 ZHOU Rong-tie(China Railway 25th Bureau Group Second Engineering Co.,Ltd.,Nanjing 210034,China)

机构地区：[1]中铁二十五局集团第二工程有限公司,南京210034

出　　处：《价值工程》2024年第15期76-79,共4页Value Engineering

摘　　要：京广上行线K1748+107铁跨铁框架桥在顶推施工中,由于雨水天气地下水位的变化,导致土体失稳,框架桥严重扎头,通过介绍框架桥纠偏的全过程,详细阐述顶升支柱、牛腿设计及安装、顶升系统选用、布置及使用方法、纠偏工艺流程、监测等施工工艺。During the jacking construction of the K1748+107 iron frame bridge on the Beijing Guangzhou Up Line,due to changes in groundwater level during rainy weather,the soil became unstable and the frame bridge was severely damaged.By introducing the entire process of correcting the deviation of the frame bridge,this paper elaborates in detail on the design and installation of the lifting pillars and brackets,the selection,layout and use of the lifting system,the correction process flow,monitoring and other construction techniques.

关 键 词：框架桥 扎头 同步顶升 纠偏 监测 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]