东海大桥跨海段非通航孔桥墩承台施工

Construction of Footings at Non-navigable Spans of the East Sea Bridge

采取何种高效、优质、安全的施工方法完成跨海段非通航孔桥墩承台施工是东海大桥工程建设能否取得成功的关键之一。主要介绍东海大桥跨海段非通航孔桥墩承台施工总原则以及施工方案的比选。详细介绍了选定的带钢底板的混凝土套箱工艺进行承台施工的技术线路、受力分析以及关键工艺和特殊措施等。工程中采取的一系列新技术和工艺创新为外海工程提供了成功的经验。

An efficient, excellent and safe way to complete the construction of pier footings at the non-navigable spans over the sea is one of the key points for the success of the East Sea Bridge Project. Introduced here are the general principles and program for the construction of footings, including details of the steel-slab-bottomed concrete casing, force analysis and key steps and special measures of the workmanship. A series of new techniques and innovation adopted in the project will provide successful experience in execution of off-sea projects.