Steel plate wall and its mfg. method

Abstract

A steel wall and a manufacturing method thereof are provided to improve waterproofing efficiency and construction efficiency, and to cut down construction cost by forming the automatic welding space of the joint part and linearly connecting plural asymmetrical U-shaped steel sheets. A steel sheet wall is constructed(a), and a temporary steel sheet is constructed(b). A closed section is formed and surrounded by the part of the steel sheet wall and the temporary steel sheet(c). Earth or sand is excavated and removed from the closed section(d), and a joint part of the steel sheet wall is washed and cleaned in the closed section(e). An automatic welding machine is set in the closed section(f), and welding is automatically performed(g). The temporary steel sheet is removed after securing waterproofing(h). The waterproof steel wall is constructed by repeating the steps.

Description

technical field [0001] The invention relates to a steel plate wall suitable for places requiring water isolation, such as waste disposal sites, underground walls of buildings, and road retaining walls, and a manufacturing method thereof. Background technique [0002] Steel sheet piles are often used for retaining walls in the construction of underground structures and temporary embankments in the construction of harbor and water facilities. The reason is that the high-rigidity wall made of steel, a high-quality material, not only can be built in a short construction period, but also has relatively good water-proof performance. [0003] Of course, the steel material itself of the steel sheet pile main body does not pass water at all, but in the fitted state, since water passes through the gap part existing in the joint part, the gap in the joint part has a great influence on the water resistance of the steel sheet pile. [0004] In general, even if the joint after driving is...

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Problems solved by technology

[0014] In addition, in the invention described in Japanese Laid-Open Patent Publication No. 07-324329 (Patent Document 2), the joint is welded, but it is different from that for discarded water because it is water-proof for buildings, that is, water-proof for groundwater in the foundation. For the water-proofing of waste disposal sites, etc., the degree of water-proofing property only needs to match the degree of drainage facilities installed on the side of buildings, which is not the same as the purpose of the present invention is to seek higher water-proofing property and reliable function.

[0015] In addition, in the invention described in Japanese Laid-Open Patent Publication No. 07-324329 (Patent Document 2), since the female joint material 73 with a special shape is used, it is worried that the female joint material 73 will be deformed when driving in, and it is suspected that the groundwater in the excavated foundation The reliability of the vertical welding of the exposed joints in the wet state or in the water state, in addition, the above method cannot be used with automatic welding machines

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