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Cofferdam structure and construction method thereof

A construction method and cofferdam technology, which can be applied in infrastructure engineering, construction, etc., can solve the problems of uneven accumulation of interception materials and leakage of cofferdams, and achieve simple demolition construction steps, improve sealing, and improve anti-seepage performance. Effect

Active Publication Date: 2020-10-23
福建兴港建工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: due to the uneven accumulation of intercepting materials, and there are gaps between them, it is easy to make the built cofferdam leak

Method used

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  • Cofferdam structure and construction method thereof
  • Cofferdam structure and construction method thereof
  • Cofferdam structure and construction method thereof

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Effect test

Embodiment 1

[0052] The embodiment of the present application discloses a cofferdam structure.

[0053] A cofferdam structure, comprising a fixed pier 1 and a detachable cofferdam board 2; the fixed pier 1 is fixedly built on the inner side of the river bank; at least one end of the detachable cofferdam board 2 is fixedly installed on the fixed pier 1; the detachable cofferdam board 2 It includes at least two water-retaining pile plates 21, one end of the water-retaining pile plate 21 is provided with a card part 211 protruding outward, and the other end surface is provided with a card groove 212 matching the card part 211; one side of the card part 211 The wall is provided with a first groove 213, and the side of the card groove 212 near the first groove 213 is provided with a second groove 214 corresponding to the first groove 213, and the axes of the first groove 213 and the second groove 214 The axial direction is the same as that of the card slot 212; the adjacent water retaining pile...

Embodiment 2

[0085] The difference between this embodiment and Embodiment 1 is that a cofferdam structure is used in the repair and construction process of the river slope, so the cofferdam structure is arranged along the flow direction of the river. The structure of the fixed pier 1 is the same as that of the first embodiment.

[0086] refer to Figure 7 , the embodiment of the present application discloses a cofferdam structure, including a fixed pier 1 and a detachable cofferdam board 2 . There are two fixed piers 1, which are fixed on the same side of the river slope to be repaired, and are respectively located upstream and downstream of the river slope to be repaired. The detachable cofferdam board 2 includes at least two water retaining pile boards 21 . One end of the detachable cofferdam board 2 is fixedly installed on the fixed pier 1 located upstream, and the other end extends along the water flow direction, is arranged in a curved arc, and is then fixedly connected to the downs...

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Abstract

The application relates to the technical field of cofferdam construction, in particular to a cofferdam structure and a construction method thereof. The cofferdam structure comprises anchor blocks anda dismountable cofferdam plate. The construction method comprises the steps of constructing the anchor blocks, inserting water retaining pile plates in the direction of flow guiding of a rive, and completing the construction of the dismountable cofferdam plate, wherein the construction is simple and quick. The adjacent water retaining pile plates are in clamping connection through a sealing mortising strip having sealing properties, the cofferdam structure is simple and convenient to disassemble and assemble and good in sealing properties, and improvement of the leakage situation of the cofferdam is facilitated. A first sealing strip in the shape of a down trapezoid in the sealing mortising strip further improves the sealing properties in a mortise, the water seepage resistance of the water retaining pile plates can be improved, and the water draining state in a creek bed repair construction process can be improved. Water guiding plates can share impact of low-level part of the river for the water retaining pile plates, and the water flowing through the water guiding plates can be transported towards the water guiding direction, so that the impact force brought by the river can bereduced. The building and constructing, and disassembling construction steps of the cofferdam structure disclosed by the application can be simple and quick, and the construction period of the cofferdam can be effectively shortened.

Description

technical field [0001] The application relates to the technical field of cofferdam construction, in particular to a cofferdam structure and a construction method thereof. Background technique [0002] With the continuous escalation of environmental problems, many water bodies in my country need to carry out ecological restoration. In the ecological restoration of rivers, due to the large flow of water in rivers, different degrees of damage in rivers are reconstructed and repaired through different restoration projects. [0003] Among them, for rivers with relatively large damage to the riverbed, at present, cofferdams are often used to intercept the flow of the original river, block the water flow in the river, drain the water in the reconstruction area, and then repair the riverbed. [0004] In order to drain the water flow in the channel reconstruction area, stones or artificial blocks, such as concrete cubes, concrete tetrahedrons, lead wire cages, bamboo cages, willow st...

Claims

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Application Information

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IPC IPC(8): E02D19/04
CPCE02D19/04
Inventor 吴学向俞益思林琳王灿熙
Owner 福建兴港建工有限公司
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