框架式通道涵顶进下穿既有铁路施工技术研究  

RESEARCH ON CONSTRUCTION TECHNOLOGY OF FRAME TYPE CHANNEL CULVERT TOP ENTERING AND UNDERCROSSING EXISTING RAILWAYS

作　　者：侯政宇 Hou Zheng-yu

机构地区：[1]中铁二十二局集团有限公司,北京100010

出　　处：《建筑技术开发》2024年第9期119-121,共3页Building Technology Development

摘　　要：随着我国铁路运输需求的快速增长,既有铁路的扩能改造工程也随之增多,在增加铁路线路的同时,受地方经济发展的限制,有越来越多的地方规划道路需上跨或下穿既有铁路,以解决地方交通出行。研究结合既有成昆线改造过程中施工的1~6 m×4.8 m通道式框架涵,以顶进式下穿施工为例,分析了框架涵下穿既有铁路顶进施工技术,以期为同类工程提供借鉴。With the rapid growth of railway transportation demand in our country,the expansion and renovation projects of existing railways have increased.While increasing railway lines,more and more local planned roads need to cross or underpass existing railways to solve local transportation problems due to the limitations of local economic development.The study combines the construction of a 1-6m×4.8m channel type frame culvert during the renovation process of the existing Chengdu Kunming railway,and takes the top-down construction technology as an example to analyze the top-down construction technology of the frame culvert under the existing railway,in order to provide reference for similar projects.

关 键 词：框架式通道涵 下穿既有铁路 顶进施工技术 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]