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Reinforcing structure of cofferdam and construction method

A technology for strengthening structures and cofferdams, which is applied in basic structure engineering, basic structure testing, construction, etc., can solve the problems of Larsen steel sheet piles being easy to overturn, high soil moisture content, affecting use, etc., to improve axial stability , Delaying the displacement of purlins and improving the adjustment ability

Pending Publication Date: 2022-05-13
HANGZHOU XIANGAO ROAD & BRIDGE ENG
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Problems solved by technology

[0003] During the construction of the Larsen steel sheet pile cofferdam, due to poor soil conditions, such as high moisture content and large pores below the river bed, the Larsen steel sheet piles driven into the river bed are easy to overturn and affect the use

Method used

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  • Reinforcing structure of cofferdam and construction method
  • Reinforcing structure of cofferdam and construction method

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Embodiment Construction

[0037] The following is attached Figure 1-2 This application is further described in detail.

[0038] The embodiment of the present application discloses the reinforcing structure of the cofferdam, referring to figure 1 , figure 2 , which includes a base mechanism that sinks to the river bed and a stabilizing mechanism that connects the base mechanism and the cofferdam 1 respectively. The base mechanism includes two concrete ring seats 5 placed at intervals from the inside to the outside. A closed annular zone 2 is formed between the surface layers of the river bed. The cofferdam 1 passes through the annular belt 2 from above the annular belt 2 and is built into the riverbed soil layer. Because of the poor soil quality of the riverbed, the concrete ring seat 5 can effectively assist the vertical capacity of the cofferdam 1 when it is inserted. 3. Pouring is formed between the annular belt 2, the surface layer of the river bed and the cofferdam 1. When the structural stren...

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Abstract

The invention discloses a cofferdam reinforcing structure and a construction method, and relates to the technical field of cofferdam construction, the cofferdam reinforcing structure comprises a base mechanism sinking to a riverbed, an annular belt allowing a cofferdam to penetrate through is formed between the base mechanism and the riverbed, underwater concrete is poured in the annular belt, and the cofferdam penetrates through the underwater concrete. The base mechanism is installed in front of the cofferdam, the cofferdam can be limited or guided when the cofferdam is installed, forming of the cofferdam is assisted, a guide pipe is selected for pouring underwater concrete, and when the underwater concrete is formed, the cofferdam can be effectively reinforced. The cofferdam has the effect of improving the stability of the cofferdam.

Description

technical field [0001] The invention relates to the technical field of cofferdam construction, in particular to a reinforcement structure and a construction method of a cofferdam. Background technique [0002] Larsen steel sheet piles, also known as U-shaped steel sheet piles, have the functions of retaining soil, water, and sand when building bridge cofferdams, laying large-scale pipelines, and excavating temporary ditches. It also plays an important role in projects such as earth walls and embankment protection banks. The Larsen steel sheet pile cofferdam is not only green and environmentally friendly, but also has a fast construction speed, low construction cost, and has a good waterproof function. [0003] During the construction of the Larsen steel sheet pile cofferdam, due to poor soil conditions, such as high moisture content and large pores below the river bed, the Larsen steel sheet piles driven into the river bed are easy to overturn and affect the use. Contents...

Claims

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Application Information

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IPC IPC(8): E02D19/04E02D5/04E02D33/00
CPCE02D19/04E02D5/04E02D33/00E02D2600/10
Inventor 周必功陆仲生
Owner HANGZHOU XIANGAO ROAD & BRIDGE ENG
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