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泰州大桥中塔采用水中沉井作为基础结构,该沉井高度达76m,分钢沉井和混凝土沉井上下两部分,高度分别为38m,规模属国内第一、世界罕见,其施工难度和施工风险大。根据泰州大桥中塔沉井基础施工情况,重点阐述沉井浮运、定位着床等深水巨型沉井施工技术。研究该深水超深巨型沉井施工技术具有很大的意义,不仅介绍了其关键技术,同时,也为将来类似工程提供了借鉴。
Taizhou Bridge in the water tower as the basic structure of the caisson, the caisson height of 76m, sub-steel caissons and concrete caisson up and down the two parts, the height of 38m, the size is the first in the world, rare in the world, the construction of the difficulty and construction Risky According to the construction condition of the caisson shaft in the middle tower of Taizhou Bridge, the construction techniques of deep caisson open caisson, such as caisson, positioning and implantation, are mainly described. It is of great significance to study the construction technology of this deepwater ultra-deep giant caisson, not only introducing its key technologies, but also providing reference for similar projects in the future.