Steel sheet pile and steel sheet pile wall formed by the steel sheet pile
A steel sheet pile and web technology, applied in sheet pile wall, construction, infrastructure engineering, etc., can solve the problems of reduced manufacturing efficiency, unsmooth operation, increased cost burden, etc., to achieve uniform pressing force and reduce warpage. Effect
Active Publication Date: 2015-05-13
JFE STEEL CORP
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Problems solved by technology
[0004] In this case, when using the conventional U-shaped steel sheet pile, in order to connect the joint part, it is necessary to insert the steel sheet pile from the end in the longitudinal direction, and the operation is not smooth, resulting in a decrease in manufacturing efficiency and an increase in cost burden.
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[0028] The steel sheet pile 1 of the present embodiment is a U-shaped steel sheet pile having a web portion 3 and flange portions 5 located at both ends of the web portion 3 , and has a fitting joint portion 7 formed on one flange portion 5 The front end of the flat plate shape joint part 9, which is formed at the front end of the other flange part 5, is used for joining with other U-shaped steel sheet piles.
[0029] Hereinafter, each part will be described in detail.
[0030]
[0031] Such as figure 1 As shown, the fitting joint part 7 is a Larsen type fitting joint part, and the front end of the flange part 5 is parallel to the web part 3, and is bent outward, and also has a claw part 7a at the front end.
[0032] also, figure 1 The shown structure is a Larsen type fitting joint part, but the fitting joint part 7 of the steel sheet pile 1 which concerns on this invention is not limited to this, For example, there exists a Lackawanna type (Lackawanna) etc. too.
[0033]...
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In order to obtain a steel sheet pile which is suitable for manufacturing by roll forming and can facilitate connection work for connecting two steel sheet piles, a steel sheet pile (1) of the present invention is a U-shaped steel sheet pile comprising a web part (3), and flange parts (5) at both ends of the web part (3), and is characterized by being provided with a fitting joint part (7) formed at the front end of one flange part, and a connection part (9) formed at the front end of the other flange part (5) to connect adjacent U-shaped steel sheet piles, the connection part (9) having a flat plate shape which is formed by bending the front end of the flange part (5) in the direction parallel to the web part (3) and extends in the direction parallel to the web part (3), and the position in the direction orthogonal to the web part (3) of the connection part (9) being set within the range of the height of the fitting joint part (7).
Description
technical field [0001] The present invention relates to a steel sheet pile and a steel sheet pile wall formed from the steel sheet pile. Background technique [0002] A general U-shaped steel sheet pile has a fitting joint part in both ends. The fitting joint parts in the both ends of such a U-shaped steel sheet pile are connected, and pile driving is performed one by one, and the steel sheet pile wall is formed. In this case, it is known that when a load acts on the steel sheet pile wall, the neutral axis changes due to the shift of the fitting joint portion, and the cross-sectional rigidity and cross-sectional strength decrease. [0003] As an improved method, there is a method of fitting two steel sheet piles in advance, and then connecting and fixing them by crimping (pressurization) or welding, and then piling to make a single-unit steel sheet pile consisting of two sheets. [0004] In this case, when using the conventional U-shaped steel sheet pile, it is necessary t...
Claims
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IPC IPC(8): E02D5/04
CPCE02D5/06E02D5/04
Inventor 恩田邦彦
Owner JFE STEEL CORP