A corrosion-resistant micro-steel pipe pile and its manufacturing method
A manufacturing method and technology of steel pipe piles, applied in the direction of sheet pile walls, buildings, foundation structure engineering, etc., to achieve the effect of improving the overall strength and enhancing the bonding force
Active Publication Date: 2019-10-01
HUAIHAI INST OF TECH +1
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Problems solved by technology
The purpose of the present invention is to provide a corrosion-resistant micro-steel pipe pile and its manufacturing method to solve the problems in the prior art, improve the corrosion resistance of the steel pipe micro-pile, and make it suitable for construction operations in various complex environments
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The invention discloses a corrosion-resistant micro steel pipe pile and a manufacturing method and relates to the technical field of engineering pile foundations. The corrosion-resistant micro steel pipe pile comprises a steel pipe pile body, a pile tip sleeve and a concrete foundation; the pile tip sleeve is installed at the bottom end of the steel pipe pile body; the top end of the steel pipe pile body is connected with the concrete foundation; the steel pipe pile body comprises a steel pipe vertically installed in a pile hole; a cavity is formed in the steel pipe; an FRP cloth material layer adheres to the outer wall of the steel pipe; and grouting is used for being poured in the cavity of the steel pipe and the pile hole. According to the corrosion-resistant micro steel pipe pile and the manufacturing method, the FRP cloth material layer is used as a protecting layer of the steel pipe, stainless steel pipe connection sleeves are used as connection pieces and grouting pieces of a plurality of segments of steel pipes, and the corrosion resistant capacity of the micro steel pipe pile is improved; and meanwhile, after the cavity is filled in a pressure grouting manner, the corrosion preventing effect can also be achieved, and the micro steel pipe pile is made to adapt to constructing operation under various complicated environments.
Description
technical field The invention relates to the technical field of engineering pile foundations, in particular to a corrosion-resistant miniature steel pipe pile and a manufacturing method thereof. Background technique Miniature steel pipe piles refer to small-diameter grouting piles with a diameter of not more than 300mm and a slenderness ratio of not less than 30. It has the characteristics of miniaturized construction machinery, high construction efficiency and strong adaptability to the foundation. It is used in soft soil foundation treatment in offshore engineering, It has been more and more used in slope reinforcement and foundation pit support. The soil layer of the offshore engineering site contains a large amount of salt and acid-base substances, which will cause serious corrosion to the micropile foundation, greatly reduce the service life of the pile foundation, and make it difficult to repair. At present, there are three main ways to improve the corrosion resistanc...
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IPC IPC(8): E02D5/38E02D5/60E02D5/72E02D15/04E02D5/52
Inventor 宗钟凌吕凤伟武江传宋明志蒋德稳
Owner HUAIHAI INST OF TECH