Caisson dock structure and construction method therefor

A caisson ship and caisson technology, which is applied in infrastructure engineering, caisson, construction and other directions, can solve the problems of changing the form or scale of the main structure, affecting the site selection of the project, time-consuming and laborious, etc., to shorten the construction period and save the project investment effect.

Inactive Publication Date: 2008-07-23
ZHONGCHUAN NO 9 DESIGN & RES INST
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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 af

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  • Caisson dock structure and construction method therefor
  • Caisson dock structure and construction method therefor
  • Caisson dock structure and construction method therefor

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Embodiment

[0025] See attached Figure 1~5 , taking the 300,000-ton dock extension project as an example, it is 185 meters long, 80 meters wide, and 12.7 meters deep from the original dock mouth 15 to the sea area. The small dock 16 with a depth of 12.7 meters, its specific construction steps are as follows:

[0026] 1. Dock wall box pre-production

[0027] The dock wall box 1 is 20 meters long, 15 meters wide, and 14.50 meters high. There are slabs 8 on both sides, and the grouting pipe 9 is embedded in it. Into the upper part of the concrete 500 mm.

[0028] 2. Dock box production

[0029] The dock mouth box 2 is composed of dock piers 11 at both ends of the dock bottom plate 10, and is 103 meters long, 30 meters wide, and 18.7 meters high. The dock mouth 5 is 91 meters long, 30 meters wide, and 18.7 meters high. U” type, the dock pier 11 should consider fenders and cable piers during floating transportation.

[0030] 3. Foundation excavation and riprap

[0031] According to the ...

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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...

Claims

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Application Information

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IPC IPC(8): E02D23/00E02D25/00
Inventor 王星球胡小明庄建国傅勇黄振瑜钱玉奇石祝高姜乃锋
Owner ZHONGCHUAN NO 9 DESIGN & RES INST
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