高明大桥扩建工程主桥5~16号墩为水中高桩承台,采用钢吊箱进行施工,吊箱结构设计突出了受力明确、结构合理、操作方便的特点。文章介绍了承台钢吊箱结构设计、安装及利用该吊箱施工的工艺技术,可为同类工程的施工设计借鉴。 Gaoming Bridge Extension Project Main Pier 5 to 16 pier for the water pile cap, the use of steel cofferdam construction, structural design of the box highlights the force is clear, reasonable structure, easy operation features. This article introduces the design of the structure of the capstock steel caisson, the installation and use of the technology of the construction of the caisson, which can be used as reference for the construction of similar projects.