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Precast concrete cofferdam and pier construction process

A prefabricated concrete and cofferdam technology, applied in bridge construction, bridges, buildings, etc., can solve the problems of bridge pier construction time and construction cost increase, and achieve the effects of good sealing, time saving and convenient time.

Active Publication Date: 2020-12-29
BUCG THE EIGHTH CONSTR DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the staff put the cofferdam into the water, there is still a lot of water in the cofferdam, and it takes a long time for the staff to pump the water from the cofferdam to the outside, which greatly increases the construction time and cost of the pier. improve

Method used

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  • Precast concrete cofferdam and pier construction process
  • Precast concrete cofferdam and pier construction process
  • Precast concrete cofferdam and pier construction process

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Embodiment Construction

[0048] The following is attached Figure 1-8 The application is described in further detail.

[0049] refer to figure 1 , figure 2 , the embodiment of the present application discloses a prefabricated concrete cofferdam, which is suitable for shallow water areas such as small rivers 9, and includes a tubular cofferdam main body 1, which is formed by pouring concrete.

[0050] refer to image 3 , Figure 4 , The cofferdam main body 1 is embedded with a reinforced skeleton 11 . An annular support plate 12 is fixedly connected to the inner peripheral surface of the cofferdam main body 1, and a pressure water plate 2 is also arranged in the cofferdam main body 1. 12 are fixed by wearing waterproof bolts, and waterproof treatment is done between the pressure water plate 2 and the support plate 12.

[0051] When laying the cofferdam, the staff first lifts the cofferdam main body 1 into the water, and makes the cofferdam sink to the bottom of the water, and then the staff remove...

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Abstract

The invention relates to the field of pier construction, in particular to a precast concrete cofferdam. The precast concrete cofferdam comprises a cofferdam body, an annular supporting plate is fixedly connected to the inner circumferential face of the cofferdam body, a water pressing plate matched with the supporting plate is further arranged in the cofferdam body, the water pressing plate is inlap joint with the upper surface of the supporting plate, and the water pressing plate is detachably connected with the supporting plate; and waterproof treatment is carried out between the water pressing plate and the supporting plate. The precast concrete cofferdam has the advantage of increasing the pier construction speed.

Description

technical field [0001] The application relates to the field of bridge pier construction, in particular to a prefabricated concrete cofferdam and a bridge pier construction process. Background technique [0002] Cofferdam refers to the temporary enclosure structure built temporarily for the construction of permanent water conservancy facilities during the construction of water conservancy projects. Its main function is to prevent water and soil from entering the place where the building is built. There are many types of cofferdams. The commonly used cofferdams are mainly concrete cofferdams. The cofferdams are manufactured in the factory, and after the production is completed, they are transported to the construction site by transport vehicles for direct use. [0003] At present, when building bridge piers in shallow water areas (such as small rivers, etc.), the staff first put the cofferdam in the designated position, and then the staff also need to seal the bottom of the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/02E02D19/04
CPCE01D19/02E01D21/00E02D19/04
Inventor 姜春雷付永乐程功王鹏
Owner BUCG THE EIGHTH CONSTR DEV
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