铁路既有线大跨度框架顶进施工时线路加固技术  

Line Reinforcement Technology during Jacking Construction of Large-span Frame on Existing Railway Line

作　　者：闫伯菲 YAN Bo-fei(China Railway 25th Bureau Group Co.,Ltd.,Guangzhou 511458,China)

机构地区：[1]中铁二十五局集团有限公司,广州511458

出　　处：《价值工程》2021年第18期132-134,共3页Value Engineering

摘　　要：在下穿铁路双线大跨度框架斜交顶进时,因施工条件困难,常规扣轨纵横梁法加固线路无法满足施工要求。经详细勘察现场和技术创新,科学制定线路加固方案,采取D型施工便梁+孔桩支墩对线路进行两阶段加固,顺利完成本项目的顶进施工,确保了广大铁路的安全运营。When under-crossing the railway double-track long-span frame skew jacking,due to the difficult construction conditions,the conventional buckle-track vertical and horizontal beam method cannot meet the construction requirements.After detailed site survey and technological innovation,the route reinforcement plan was scientifically formulated,and the D-shaped construction beam+hole pile buttress was adopted to strengthen the line in two stages.The jacking construction of this project was successfully completed,which ensured the safe operation of Guangda Railway.

关 键 词：广大铁路 顶进法 施工便梁 线路加固 分阶段 

分 类 号：U213.2[交通运输工程—道路与铁道工程]