既有铁路高路基帮宽填筑施工质量控制关键技术

Key Technology of the Quality Control of Existing Railway High Roadbed Widening Filling Construction

铁路是我国传统的交通运输方式,也是与国家经济和人们生活关系最密切的基础设施。随着国家经济发展的需要,对铁路既有线的扩能升级改造项目越来越多,在铁路既有线升级改造过程中,常常对原有路基进行加宽来满足增设复线的需要,既有铁路高路基帮宽的施工控制难点是不均匀沉降控制,作者结合实际施工经验,对此项技术进行必要的总结,以便为同类工程提供参考。

Railway is a traditional way of transportation in China, and is also the infrastructure most closely related to national economy and people＇s life. With the needs of the development of national economy, expansion and upgrading of existing railway lines are increasing.In the process of upgrading existing railway lines, the originated roadbed is often widened to to satisfy the need of adding multiple track.The construction control difficulty of railway high road bed widening is uneven settlement control. Combined with actual construction experience, the author summarizes the technology, in order to provide reference for similar projects.