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Cofferdam construction technology in hydraulic engineering

A technology for water conservancy projects and cofferdams, applied in infrastructure engineering, construction, etc., can solve problems such as complex construction process, low efficiency of cofferdams, difficulty in implementing cofferdam construction and treatment, etc., to achieve improved environmental applicability, high efficiency and stability The effect of installation

Inactive Publication Date: 2018-03-06
CHINA NAT CHEM ENG NO 14 CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of building the existing cofferdams, the construction process is often relatively complicated, which leads to the low efficiency of the cofferdams in the construction process, especially when the environment of the river bottom where the cofferdams are built is relatively complicated, it is difficult to realize Good cofferdam construction treatment

Method used

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  • Cofferdam construction technology in hydraulic engineering
  • Cofferdam construction technology in hydraulic engineering
  • Cofferdam construction technology in hydraulic engineering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 A cofferdam construction process in a water conservancy project shown includes the following process steps:

[0023] 1) Select the cofferdam construction position 1 in the river channel, and arrange a plurality of vertical steel pipes 2 sequentially along the width direction of the river channel in each cofferdam construction position 1, and use horizontal steel pipes 3 for the same cofferdam construction position 1. A plurality of vertical steel pipes 1 are supported and connected, so that the plurality of vertical steel pipes 1 form a whole;

[0024] 2) A bamboo fence 4 is arranged on the end face of the vertical steel pipe 2 in each cofferdam construction position 1 relative to the water flow in the channel, and the bamboo fence 4 and the vertical steel pipe 2 are wound and connected by a wire rope;

[0025] 3) Lay at least 3 layers of waterproof cloth on the bamboo fence board 4 in step 2) to form the construction of the cofferdam.

[0026] As an ...

Embodiment 2

[0030] As an improvement of the present invention, such as figure 2 As shown, in the step 1), there are two sets of cofferdam construction positions arranged in the river channel, which are distributed sequentially in the extending direction of the river channel; each set of cofferdam construction positions respectively includes first cofferdam construction positions 101 opposite to each other The second cofferdam construction position 102 and the second cofferdam construction position 102 in multiple groups of cofferdam construction positions are set opposite to each other; in any group of cofferdam construction positions, the vertical steel pipe corresponding to the first cofferdam construction position 101 2. Connect with the fixtures 9 on both sides of the river channel through steel strands. Adopting the above-mentioned technical scheme, it can form multiple protective treatments for the water flow in the river channel through the setting of corresponding cofferdams in t...

Embodiment 3

[0033] As an improvement of the present invention, such as image 3 As shown, in the step 2), the vertical steel pipe 2 in each cofferdam construction position 1 is provided with a supporting steel pipe 5 extending obliquely downward on the end face away from the water flow in the channel, which extends to the bottom of the channel.

[0034] As an improvement of the present invention, such as image 3 As shown, in the river channel, a support groove 6 adopting a "V"-shaped structure is provided at the corresponding position of the end of the support steel pipe 5, and a support end plate 7 is provided on the opposite side wall of the support groove 6 and the support steel pipe 5, The supporting steel pipe 5 is connected to the supporting end plate 7 . By adopting the above technical solution, each cofferdam can form a more stable supporting effect relative to the water flow direction in the river channel, so that the interception effect of the cofferdam on the water flow can b...

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Abstract

The invention discloses a cofferdam construction technology in hydraulic engineering. The cofferdam construction technology in the hydraulic engineering includes the following process steps that firstly, cofferdam construction positions are selected in a riverway, a plurality of vertical steel pipes are sequentially arranged in each cofferdam construction position in the width direction of the riverway, and the vertical steel pipes in the same cofferdam construction position are supported and connected through a transverse steel pipe, so that the vertical steel pipes can form a whole; secondly, the vertical steel pipes in each cofferdam construction position are provided with bamboo sheathing plates relative to the position above the end faces of river flow in the riverway, and the bamboosheathing plates and the vertical steel pipes are wound and connected through steel wire ropes; and at least three layers of waterproof cloth is laid on the bamboo sheathing plates in the second stepso that cofferdam construction can be formed. The cofferdam construction technology in the hydraulic engineering can achieve efficient and stable cofferdam construction in any riverway environment.

Description

technical field [0001] The invention relates to the field of water conservancy projects, in particular to a cofferdam construction process in water conservancy projects. Background technique [0002] Cofferdam refers to the temporary enclosure structure built for the construction of permanent water conservancy facilities in the construction of water conservancy projects; its function is to prevent water and soil from entering the construction position of the building, so as to drain water in the cofferdam and excavate foundation pits , build buildings. In the process of building the existing cofferdams, the construction process is often relatively complicated, which leads to the low efficiency of the cofferdams in the construction process, especially when the environment of the river bottom where the cofferdams are built is relatively complicated, it is difficult to realize Good cofferdam construction treatment. Contents of the invention [0003] The technical problem to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/04
CPCE02D19/04
Inventor 焦赞王国庆谢士俊陆燕
Owner CHINA NAT CHEM ENG NO 14 CONSTR
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