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Shallow water green ton bag cofferdam construction method

A construction method and technology in shallow water areas, applied in infrastructure engineering, construction, etc., can solve the problems of easy destruction of ecological balance and great impact on biological living environment, so as to prevent the entry of oil pollutants, less noise pollution, and construction safe effect

Inactive Publication Date: 2018-02-09
THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Especially in the Jiangnan water network area, there are many rivers and lakes, and the water level is generally shallow and the water flow is gentle. The traditional clay woven bag cofferdam and steel plate cofferdam method are often used during construction, resulting in pollution such as siltation, oil pollution, and noise during construction. It is very easy to destroy the ecological balance. If there is aquaculture near the river and lake, it will have a great impact on the living environment of the organisms in the river.

Method used

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  • Shallow water green ton bag cofferdam construction method
  • Shallow water green ton bag cofferdam construction method
  • Shallow water green ton bag cofferdam construction method

Examples

Experimental program
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Embodiment 1

[0034] Embodiment 1: The construction method of the green ton-bag cofferdam in the shallow water area provided by the present invention mainly includes: construction preparation → measurement and setting out → filling sand in the ton-bag → putting in the ton-bag, stacking → edge sealing and water blocking → pumping → base dredging , Leveling→cushion construction→structural construction completed→cofferdam dismantled and shipped out.

[0035] (1) Construction preparation

[0036] Prepare big bags and other related tools and materials.

[0037] (2) Measurement stakeout

[0038] Determine and measure the range of the cofferdam according to the actual situation on site and the requirements of the cap structure. Due to the influence of the total hydrostatic pressure and the force center, combined with the principle of economy and applicability, the central part of the side of the cofferdam adopts a circular arc shape to reduce water damage. side pressure.

[0039] (3) Ton bags f...

Embodiment 2

[0053] Embodiment 2: when the depth of water in the area is 1 ~ 2 meters, if image 3 , Figure 4 As shown, fir trees 14 with a diameter of 15 cm and a length of 4.5 meters are arranged inside the cofferdam of the big bag 11. The fir trees are arranged close to each other without interruption. 15 for binding reinforcement. The fir piles can be pressed with the bucket teeth of an excavator. If it is difficult to press the fir piles, a special rammer can be used to drive the piles. Pile driving requires that the piles are closely connected without interruption, and all the fir piles are of the same height.

Embodiment 3

[0054] Embodiment 3: when the depth of water in the area is 2 ~ 3 meters, if Figure 5 , Image 6 As shown, at this time, according to the height of the big bag 21, fir 24 with a diameter of 15 cm and a length of 6 meters is respectively arranged on the inside and outside of the big bag cofferdam. 2.5 meters, 3.5 meters exposed, all fir piles have the same height, steel wire strips 25 are used to bind and reinforce the top of the exposed fir 24, and 26 pairs of steel wire ropes are arranged between the inner fir and the outer fir, and the interval is 1m.

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PUM

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Abstract

The invention discloses a shallow water green ton bag cofferdam construction method. The method includes the following steps of making construction preparations, staking out in survey, filling ton bags with sand, throwing and stacking the ton bags, conducting edge banding and water plugging, pumping water, carrying out basement dredging and flattening, constructing a cushion layer, completing structural construction, removing a cofferdam and transporting the cofferdam outwards. The green ton bag cofferdam construction method is adopted to reduce the influence on the living environment of aquatic creatures, and the ecological balance can be maintained.

Description

technical field [0001] The invention relates to a construction method for a green ton bag cofferdam in a shallow water area, and belongs to the technical field of building construction. Background technique [0002] With the continuous development of our country's social economy, the people's awareness of environmental protection has been continuously strengthened, and more and more attention has been paid to the protection of the ecological environment. While vigorously developing infrastructure to facilitate people's lives, how to reduce pollution during construction, reasonably and efficiently resolve the contradiction between construction and ecology, ensure construction safety, and minimize the impact on surrounding ecology is exactly what green construction advocates. of. [0003] Especially in the Jiangnan water network area, there are many rivers and lakes, and the water level is generally shallow and the water flow is gentle. The traditional clay woven bag cofferda...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/04
CPCE02D19/04
Inventor 何义袁晓晨黄峰全有维顾留碗贺烈马郭敏王付聪高栋拓金城马添刘金伟金童仲启超仲敏年周翔
Owner THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU