Construction of No.32 pier in Nanchang Shengmi Bridge using single wall steel suspension box with bottom;

Design and construction of Mulanxi super large bridge's single wall steel suspending cofferdam

This paper presents the study of construction scheme for large-scale deepwater foundation, including the alternative of locate mode for double-wall steel boxed cofferdam, design and arrangement of heavy anchorage system.

Parts of the foundations of the Bridge are of the low-lying pile caps located in the shallow sea area and some of the pile caps in the relatively deep water in the sea area are constructed by the single-wall steel boxed cofferdams.

Design of the steel cofferdam of Shawan super Bridge and its construction;

Comparison between the steel cofferdam and concrete cofferdam of one pipe cap construction

This article introduces three outstanding innovations:Utilization of steel casing to establish a construction platform for Sutong Bridge s super-large and deep-pile groups;Permanent collision facilities consisting of collision structure and 5 000 ton steel cofferdam which is lowered as a whole;Permanent scour protection.

11 of Zhongxian Changjiang River Highway Bridge was implemented by the combined method of floating platform and steel boxed cofferdam.

The steel boxed cofferdam for the south pylon pier footing of Sutong Bridge is designed in shape of dumbbell and is totally around 5 800 t in weight.

With reference to several construction exemplars of the steel boxed cofferdams used for piers in sea, Donghai Bridge close to island side, the key points of design and construction of the cofferdams used in marine environment are presented.