New Types of Concrete Boxed Cofferdam for the Construction of Offshore Pile Caps

In order to improve the corrosion resistance and speed up the construction progress of bridge construction, a new type of concrete boxed cofferdam is used to replace the traditional steel boxes. This can improve economic efficiency, reduce the risks of marine construction, reduce consumption of resources caused by construction and pollution of the marine environment. This technology was used in the construction of Qingdao Bay Bridge to save a large number of working hours and reduce costs by about 51.86 million yuan. This paper introduces the construction technology of a new type of concrete boxed cofferdam and shows the mechanical properties of the boxed cofferdam. The research shows this the new technology can effectively reduce the stress of concrete boxed cofferdam caused by heat and hydration of concrete.