Assembled cofferdam suitable for rock foundation and construction method thereof
A prefabricated, cofferdam technology, applied in infrastructure engineering, marine engineering, water conservancy engineering, etc., can solve the problems of large area, large amount of cofferdam engineering, unsuitable rock foundation, etc., to achieve low construction cost, construction The effect of low risk and short construction period
Active Publication Date: 2022-07-05
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a prefabricated cofferdam suitable for rock foundation and its construction method in order to overcome the defects of the prior art that the cofferdam has a large amount of work, occupies a large area, and is not suitable for rock foundations.
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[0047] The present invention will be more clearly and completely described below by means of the embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the described embodiments.
[0048] like Figure 1 to Figure 7 As shown, an assembled cofferdam suitable for rock foundation, the assembled cofferdam includes a water retaining body 2, a plurality of counterweights, the water retaining body 2 or the water retaining body 2 and the river slope are surrounded by a top opening around the top In a sealed space, the water blocking body 2 keeps the water out of the space, and the water blocking body 2 is sealed and fixed to the bed 1 .
[0049] By arranging the counterweight inside the cavity 213 of the water blocking body 2, the stability and impact resistance of the water blocking body 2 can be improved. The cofferdam of this structure can be applied to the rock-base channel. The use of this prefabricated cofferdam h...
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The invention discloses a prefabricated cofferdam suitable for rock foundation and a construction method thereof. The prefabricated cofferdam includes a water retaining body, a plurality of counterweights, and the water retaining body or the water retaining body and the river slope 7 are enclosed in a A space sealed around the top opening, the water blocking body keeps water out of the space, the water blocking body is sealed and fixed with the bed, the water blocking body has a cavity inside, and the counterweight is placed in the cavity. By arranging a counterweight in the water retaining body to form a gravity structure, it can be applied to rock-based river channels. The use of this prefabricated cofferdam has the advantages of few construction procedures, simple construction technology, first construction risk, less excavation workload, less construction material consumption, low construction cost, and short construction period.
Description
technical field [0001] The invention relates to the field of river and bridge engineering, in particular to a prefabricated cofferdam suitable for rock foundation and a construction method thereof. Background technique [0002] In river engineering, bridge engineering, and flood control and drainage engineering, the issue of underwater cofferdams is usually involved. Cofferdams, as temporary water retaining structures, are used to surround foundation pits, and their function is to prevent water and soil from entering the construction of buildings. To ensure that the structure is constructed on dry land, after the completion of the general project task, if the cofferdam cannot be combined with the main project to become a part of the permanent project, it should be removed. Therefore, the cofferdam is required to have the characteristics of stable structure, anti-seepage and anti-scour, simple construction, convenient construction, maintenance and removal, and economical and ...
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IPC IPC(8): E02D19/04E02B3/16
CPCE02D19/04E02B3/16Y02A10/23
Inventor 顾威董学刚马如彬邹恒曹坤王弘元
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP