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Plugging method for process micro-leakage double-wall steel cofferdam

A double-wall steel cofferdam and micro-leakage technology, which is applied in infrastructure engineering, construction, etc., can solve problems such as difficult to find and inaccurate welder current control, and achieve the effect of less process steps and convenient plugging operation

Inactive Publication Date: 2019-06-21
CHINA 19TH METALLURGICAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the modern welding technology is relatively advanced, it is unavoidable that the welder does not control the current accurately enough, resulting in micro-holes on the thin plate, which are difficult to detect during inspection. After the cofferdam is put into water, there is water leakage. Weir wall micro-holes for sealing

Method used

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  • Plugging method for process micro-leakage double-wall steel cofferdam
  • Plugging method for process micro-leakage double-wall steel cofferdam
  • Plugging method for process micro-leakage double-wall steel cofferdam

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Embodiment Construction

[0017] Such as figure 1 Shown is a plugging method for process microleakage double-wall steel cofferdams provided by the invention, which is easy to operate and has few process steps. The plugging method includes a thin-plate double-wall steel cofferdam, and the described plugging method adopts plug nails 1 for initial plugging, plugging and fixing welding to complete the miniature water leakage holes on the thin-plate double-wall steel cofferdam during the drainage process 2 blockage. The plugging method of the present application first uses the plug nail 1 to initially plug the micro-leakage hole 2 left over from the previous procedures such as welding in the process of removing the surrounding water in the thin-plate double-wall steel cofferdam after it has been lowered, and then Quickly carry out plugging and fixing welding to the micro-leakage hole 2 that has been initially blocked to complete the plugging of the micro-leakage hole 2 on the thin-plate double-wall steel c...

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Abstract

The invention discloses a plugging method, particularly discloses a plugging method for a process micro-leakage double-wall steel cofferdam, and belongs to the technical field of building constructionprocesses. The plugging method for the process micro-leakage double-wall steel cofferdam is convenient to operate and few in process steps. The plugging method comprises a thin-plate double-wall steel cofferdam, and comprises the step that plugging of micro water leakage holes in the thin-plate double-wall steel cofferdam in a drainage process is completed through initial plugging of nail plugging and welding for plugging fixing.

Description

technical field [0001] The invention relates to a plugging method, in particular to a plugging method for process micro-leakage double-wall steel cofferdams, and belongs to the technical field of building construction technology. Background technique [0002] With the development of the national economy, my country's bridge industry is developing rapidly. my country is catching up with or approaching the world's advanced level in terms of bridge design theory, construction technology and equipment, and the construction of long-span sea-crossing and river-crossing bridges continues to increase. The use of double-wall steel cofferdams for the main pier columns in the channel to carry out underwater foundation construction has become the main method of large-volume deep-water foundation construction for modern long-span bridges. At present, the double-wall steel cofferdams are mostly made of steel plates with a thickness of 6 mm and 8 mm. During the welding process of thin plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/04
Inventor 骆光辉周军石朝华周勇刘昌文姚博王鹏汪勇斌沈文强
Owner CHINA 19TH METALLURGICAL CORP
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