Title:
STEEL PIPE FOUNDATION, FOUNDATION STRUCTURE, CONSTRUCTION METHOD OF FOUNDATION STRUCTURE, AND REMOVAL METHOD OF STEEL PIPE FOUNDATION
Document Type and Number:
Japanese Patent JP2023104158
Kind Code:
A
Abstract:
To provide a steel pipe foundation, a foundation structure, a construction method of foundation structure, and a removal method of steel pipe foundation capable of easily constructing and removing without using special equipment with respect to hard ground.SOLUTION: A steel pipe foundation 1 includes: an excavation ring part 4 formed at a tip part; a steel pipe part 3 with rib which is positioned above the excavation ring part 4, and in which a spiral inner surface side rib 7 is formed on an inner surface 5 and a spiral outer surface side rib 8 is formed on an outer surface 6; and a steel pipe part 2 without rib formed above the steel pipe part 3 with rib. When constructing a foundation structure 19, the steel pipe foundation 1 is rotated normally and is press-fitted until the steel pipe part 3 with rib is buried in ground 15. In the foundation structure 19, the steel pipe part 3 with rib is buried in the ground 15, and the steel pipe part 2 without rib is exposed above the ground 15. When removing the steel pipe foundation 1 from the foundation structure 19, the steel pipe foundation 1 is rotated reversely and is pulled out from the ground 15.SELECTED DRAWING: Figure 2
Inventors:
OKUBO KENJI
Application Number:
JP2022004984A
Publication Date:
July 28, 2023
Filing Date:
January 17, 2022
Export Citation:
Assignee:
KAJIMA CORP
International Classes:
E02D27/12; E02D5/28; E02D7/22; E02D27/32; E02D27/52
Attorney, Agent or Firm:
Seiichi Inoue
Previous Patent: Vibration suppression structure and method of forming vibration suppression structure
Next Patent: Positioning system
Next Patent: Positioning system