魏  洋^1,2，吴  刚²，吴智深²，蒋剑彪³，张  敏³
(1 南京林业大学土木工程学院，南京210037; 2 东南大学城市工程科学国际研究中心，南京210096; 3 北京特希达技术研发有限公司，北京100011)

[摘要] 总结了若干最新日本水下桥墩结构加固技术，包括新型沉箱干作业法加固水下结构技术、压入钢管加固技术、预制混凝土面板快速桥墩加固法，给出了几种加崮技术的基本原理与施工工艺，同时对各技术的工艺特点进行了系统地分析，指出在桥梁水下结构加固方案选择时，应充分考虑各加固技术特点。
[关键词] 桥梁；桥墩；水下；结构；加固

Severalinnovative strengthening technologies for underwater piers
Wei Yang^1,2, Wu Gang², Wu zhishen², Jiang Jianbiao³, Zhang Min³
(1College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China; 2 International Institute for Urban Systems Engineering, SEU, Nanjing 210096, China; 3 Beijing Texida Technology R&D Co.,Ltd., Beijing 100011, China)

Abstract: Some ofthe latest Japanese bridge structures strengthening technologies were summarized, including neo-dry repair method with caisson, preatressed steel pipe reinforcement technology, precast rapid intensification system. The basic principles and construction technology of several strengthening method were provided. At the same time, the technical characteristics of each technology were systematically analyzed. The reinforcement of bridge underwater structures should fully consider each retrofit technology features.
Keywords: bridge; piers; underwater; structures; strengthening