Caisson dock structure and construction method therefor

Abstract

The invention discloses a caisson dock structure and the construction method, which is characterized in that, on a foundation bed on which the dock is planned to be built, a prefabricate reinforced concrete caisson and a prefabricate U-shaped steel pontoon are positioned to be the dock wall and the dock entrance respectively, an then a peripherally enclosed dock wall and the dock entrance are assembled; water-seal treatment is applied to the caisson, and a water-seal curtain is constructed at the bottom of the caisson; the construction methods include caisson prefabrication, foundation digging, rock disposition, position and assembly, water-seal treatment and other procedures. The caisson dock structure has the advantages that no construction cofferdam is needed; construction is carried out in water by using the dock wall caisson and the dock entrance pontoon to form the dock structure; therefore, project cost is reduced, the time limit for the project is shortened, and land acquisition problem of the cofferdam and the influence to the periphery environment is solved.

Description

technical field [0001] The invention relates to a hydraulic structure and a construction method, in particular to a caisson dock structure and a construction method thereof. Background technique [0002] In the traditional dock construction process, temporary cofferdams must be set up before the construction of the main structure of the dock can be carried out. Cofferdams generally occupy a large amount of water, and the construction is difficult, risky, and costly; the cost accounts for about 20% of the total cost of the dock project. % or higher, and often affected by terrain, water area, water depth and other conditions, some cannot be implemented, and some are forced to change the form or scale of the main structure, and even affect the site selection of the project. The removal of the cofferdam after the dock construction is completed, and Time-consuming and labor-intensive, also waste a large amount of engineering materials. Contents of the invention [0003] The ob...

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Problems solved by technology

[0002] In the traditional dock construction process, temporary cofferdams must be set up before the construction of the main structure of the dock can be carried out. Cofferdams generally occupy a large amount of water, and the construction is difficult, risky, and costly; the cost accounts for about 20% of the total cost of the dock project. % or higher, and often affected by terrain, water area, water depth and other conditions, some cannot be implemented, and some are forced to change the form or scale of the main structure, and even affect the site selection of the project. The removal of the cofferdam after the dock construction is completed, and Time-consuming and labor-intensive, but also waste a lot of engineering materials

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