关于城市高架桥调坡顶升中墩台基础改造设计的探讨  

Discussion on the Reconstruction Design of Pier and Abutment Foundation in the Process of Slope Adjustment and Jacking of Urban Viaduct

作　　者：毛娜 Mao Na(Nantong Municipal Engineering Design Institute Co.,Ltd.,Nantong Jiangsu 226002,China)

机构地区：[1]南通市市政工程设计院有限责任公司,江苏南通226002

出　　处：《城市建筑》2020年第11期161-162,173,共3页Urbanism and Architecture

摘　　要：桥梁整体顶升技术因具有施工便捷、经济易行、效果显著等优点,在各大中型改造工程中被实际应用并广受好评。国内外诸多桥梁成功顶升的案例也证明,顶升技术对于需要抬高改造的桥梁工程来说,是一个较为经济合理的优选方案,特别是在城市高架桥线形的改造工程中,与其他改造方案相比,其各方面综合指标都具有绝对的优势。在桥梁顶升改造过程中对墩台基础的改造设计,也是顶升改造中亟须解决的问题。本文通过工程实例简要介绍了城市高架桥线形改造整体顶升中墩台基础部分的改造设计。Because of its advantages of convenient construction, economy and obvious effect, the integral jacking technology of bridge has been widely used in various large and medium-sized reconstruction projects. Many successful jacking cases at home and abroad have also proved that jacking technology is a more economical and reasonable optimization plan for the bridge engineering that needs to be elevated and reconstructed, especially in the reconstruction project of urban viaduct alignment. Compared with other reconstruction schemes, its comprehensive indexes in all aspects have absolute advantages. In the process of bridge girder jacking, the design of pier and abutment foundation is also an urgent problem to be solved. This paper briefly introduces the design of pier and abutment foundation in the integral jacking of urban viaduct linear reconstruction through engineering cases.

关 键 词：线形改造 基础改造 整体顶升 

分 类 号：U443.7[建筑科学—桥梁与隧道工程]