Title:
STEEL PIPE SOIL-CEMENT COMPOSITE PILE, STEEL PIPE PILE, STEEL PIPE, AND METHOD FOR CONSTRUCTING STEEL PIPE SOIL-CEMENT COMPOSITE PILE
Document Type and Number:
WIPO Patent Application WO/2023/037855
Kind Code:
A1
Abstract:
This steel pipe soil-cement composite pile comprises: a soil-cement column that extends from a ground surface into the ground; and a steel pipe pile in the soil-cement column. The steel pipe soil-cement composite pile also comprises: a plurality of first protrusions having a height of 15 mm or more and being formed on an outer circumferential surface of the steel pipe pile in a pile head region of the steel pipe soil-cement composite pile; and a plurality of second protrusions formed at arrangement intervals of no more than 75 mm, in a range of at least a distance 3D (D is the outer diameter of the steel pipe pile), from a lower end in the vertical direction of the steel pipe soil-cement composite pile.
Inventors:
ONDA KUNIHIKO (JP)
ICHIKAWA KAZUOMI (JP)
OHBA YUTO (JP)
ICHIKAWA KAZUOMI (JP)
OHBA YUTO (JP)
Application Number:
PCT/JP2022/031545
Publication Date:
March 16, 2023
Filing Date:
August 22, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
E02D5/30; E02D5/28
Foreign References:
| JP2005083151A | 2005-03-31 | |||
| JP2009191453A | 2009-08-27 | |||
| JP2009114846A | 2009-05-28 | |||
| JP2009068326A | 2009-04-02 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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