The sleeve box of base slab under the construction is not only borne by itself loading action,but also borne by common action of wave and flow because of bad construction conditions on sea.

The design and construction of the steel box of Yongding new river super large Bridge;

Drilling pile construction of depth foundation steel box;

2 pier of Wen-Fu railway Aojiang super large Bridge,the plan of using steel box in the basis construction is put forward,in which the key points in No.

This paper introduces three major construction schemes of the steel cofferdam,steel platform and steel boxed cofferdam for deep-water bridge foundations,makes a study of the advantages and disadvantages of the three schemes and also gives applicable conditions of each of the schemes.

The steel boxed cofferdam for the south pylon of the 3rd Nanjing Changjiang River Bridge is a dumbbell-shape structure and the launching of its first integral segment is a key step in the construction.

During the constructions of pile caps,the steel boxed cofferdam coheres with steel pipe piles after pouring bottom concrete,the bond effect between them determines whether the pile cap constructions succeed or fail.

Steel jacket box cofferdam is a temporary retaining structure designed for bearing platform and bridge pier construction on water,the aim of this study is to provide a dry construction conditions for bearing platform and bridge pier construction on water by means of retaining water of steel jacket box cofferdam and sub-sealing concrete.

During constructing the bored plies or enlarging the foundations,the lighter and more convenient steel jacket box may be used instead of using the steel sheet pile as the cofferdam.

Based on the construction of Tongtu Bridge in Ningbo, description is given of the design and construction of the footing with steel cofferdam in tidal water.