Double-wall steel hanging box cofferdam provided with rapid mounting and dismounting double lock catch devices

Abstract

A double-wall steel hanging box cofferdam provided with rapid mounting and dismounting double lock catch devices is characterized in that a first C-shaped pipe and a second C-shaped pipe are welded toa second box wall board of a first steel hanging box, and a third C-shaped pipe and a fourth C-shaped pipe are welded to the box wall of a second steel hanging box; triangular stiffening plates the same in structure are welded to the first C-shaped pipe, the second C-shaped pipe, the third C-shaped pipe and the fourth C-shaped pipe correspondingly; two end wing plates of first joist steel and second joist steel are arranged in the first C-shaped pipe, the second C-shaped pipe, the third C-shaped pipe and the fourth C-shaped pipe correspondingly; first long-strip-shaped stiffening plates are welded to the first C-shaped pipe and the third C-shaped pipe, and second long-strip-shaped stiffening plates are welded to the second C-shaped pipe and the fourth C-shaped pipe; the first lock catch device and the second lock catch device are arranged on the front-back outer walls of the first steel hanging box and the second steel hanging box correspondingly, the first steel hanging box and the second steel hanging box are installed and fastened together, and the double-wall steel hanging box cofferdam provided with the rapid mounting and dismounting double lock catch devices is formed.

Description

technical field [0001] The invention relates to the field of deep-water foundation construction, in particular to a double-wall steel hanging box cofferdam provided with a quick assembly and disassembly double locking device. Background technique [0002] Double-wall steel hanging box cofferdam is a water-retaining structure used in the field of deep-water bridge foundation construction. It is widely used in high pile caps and muddy low pile caps. In terms of construction technology, it can be divided into two types: overall hoisting of large floating cranes and in-situ assembly of the bridge site; the cofferdam structure is processed in advance by unit block in the steel structure processing plant, and transported to the bridge site for cofferdam structure assembly in units In-situ assembly process is more common. [0003] The double-wall steel hanging box cofferdam is the link that consumes the longest time and has the lowest construction efficiency in the process of stru...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a double-walled steel cofferdam with a quick assembly and disassembly double locking device for the existing double-walled steel hanging box cofferdams, which take a long time to assemble or dismantle after construction, low construction efficiency and high safety risks. Hanging box cofferdam: This device can effectively improve the construction efficiency of the double-wall steel hanging box cofferdam in the process of wall assembly and dismantling, reduce the labor intensity of construction personnel, reduce construction safety risks, and realize rapid installation and dismantling of the cofferdam wall. purpose to meet construction needs

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