In order to study the design and construction of pile foundation and bearing sets box,by calculation of corrosion allowance and different structure of pile caps of the wave forces.To study the design and construction process of load,the stress of large bridge construction,durability and safety of infrastructure,the structure of the bridge foundation was optimized.According to the bridge load and the project constructiondifficulty,the base material durability,and so on.The project adopted round cap structure form,requested the pile foundation choose high toughness steel,in strict accordance with the design requirements,construction process to strictly control box installation location,construction spacing within 5 cm,bottom sealing concrete need to achieve 85％.The article introduced design and construction method of the design of pile foundation and boaring sets boxes.Ensuring the first real sea bridge open to traffic on high quality and on schedule.%为了研究桩基和承台套箱设计与施工的关键问题,通过计算桩基腐蚀余量和不同承台结构情况下的波浪作用力,研究了设计与施工过程中大型桥梁的受力荷载、施工难道、基础结构的耐久性和安全性,并对桥梁基础的结构形式进行了优化.设计过程中根据大桥的设计荷载、工程建设难度、基础材料的耐久性和使用安全等方面进行了分析研究,工程采用了圆形的承台结构形式,桩基基础选择韧性较高的钢材,施工过程中需要严格按照设计要求开展,控制套箱的安装位置,施工间距尺寸在5 cm之内,封底混凝土在85％以上,采用定型钢模保证一次成型.研究及使用情况表明,东海大桥桥墩基础防腐材料选择、承台结构形式、承台套箱施工工艺可以满足跨海大桥结构稳定、安全和使用年限要求,可以为类似桥梁建设提供借鉴经验.
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