大跨度框架桥顶进铁路既有线架空施工研究  

Research on overhead construction of existing line along jacked railway of large-span frame bridges

作　　者：刘灿 

机构地区：[1]中铁二十五局集团第二工程有限公司,湖南衡阳421002

出　　处：《山西建筑》2017年第26期163-164,共2页Shanxi Architecture

摘　　要：结合孟平铁路增建二线梅园路框构顶进工程,对横抬梁与D型便梁相结合的方式进行了全面的探究,解决了铁路框构桥在顶进过程中线路不稳定、养护工作繁琐、人员配置多、顶进阶段久、安全风险大等缺陷。Combining with the jacked project of Meiyuan road of the added second line along Mengping railway,the paper has the full-sided research by combining with the horizontal lifting beam and D-type temporary beam,so as to solve the defects including the unstable routes,complicated maintenance,various personnel allocation,prolonged jacking stage,and large safety risks of the railway frame bridges in the jacking process.

关 键 词：大跨度框架桥 既有线路架空 施工工艺 

分 类 号：U448.13[建筑科学—桥梁与隧道工程]