Spun expanded steel pipe pile

A technology for steel pipe piles and pile foundations, which can be applied to sheet pile walls, buildings, infrastructure projects, etc., can solve problems such as being unfavorable to maintain the overall verticality of steel pipe piles, so as to enhance verticality and construction efficiency, and improve construction efficiency. , the effect of improving verticality

Pending Publication Date: 2018-05-08
GUANGXI SHENGHU METAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The steel pipe pile and the construction method of the steel pipe pile are conducive to improving the construction efficiency, and can partially reduce the disturbance to the surrounding ground, but the method of cutting the steel pipe pile is not conducive to maintaining the overall verticality of the steel pipe pile

Method used

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  • Spun expanded steel pipe pile
  • Spun expanded steel pipe pile
  • Spun expanded steel pipe pile

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Experimental program
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Embodiment Construction

[0033] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but the scope of protection of the present invention is not limited to the following examples and accompanying drawings.

[0034] The steel pipe pile shown in this embodiment and the accompanying drawings, combined with figure 1 and figure 2 As shown, the steel pipe pile composed of the pile foundation main body 10, the spiral blade 20, the bottom plate 30, the inner excavation knife 41, and the outer excavation knife 42 is pushed into the ground by the rotation of the pile foundation main body 10, and buried in a designated position ( depth), used as foundation piles for structures or buildings. In this embodiment, the term "building" mentioned below may also be represented as a structure. The pile foundation main body 10 used in this embodiment has a cylindrical shape (cylindrical shape here) extending linearly in the longitudinal direction.

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Abstract

The invention discloses a spun expanded steel pipe pile. The spun expanded steel pipe pile comprises a hollow pile foundation body, the outer circumferential surface of the front end of the pile foundation body is provided with continuous helical blades, and the front end of the pile foundation body is provided with a forwards-protruded drilling cutter. The spun expanded steel pipe pile can provide with a building above with great vertical support force, greatly improve the construction efficiency and meanwhile ensure integral perpendicularity during construction.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a spinning and expanding head steel pipe pile. Background technique [0002] Steel pipe piles are currently widely used in the pile foundations of bridges, docks, houses, etc. from small to large buildings. It is very convenient for lifting, transportation or pile sinking. It is characterized by high bearing capacity. The current steel pipe piles It is generally hollow and cylindrical, and is drilled into the ground by pile drivers and piling hammers. However, when the current steel pipe piles are used for construction, the steel pipe piles are not easy to be drilled into the ground, which seriously affects the construction efficiency, and the steel pipe piles The contact surface with the formation is small, and the supporting force is slightly weak. [0003] At present, there are some patent records about steel pipe piles with spiral blades, such as the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/28E02D7/22E02D13/08
CPCE02D5/285E02D7/22E02D13/08
Inventor 岛袋盛义岛袋云茜
Owner GUANGXI SHENGHU METAL PROD
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