Title:
STEEL PIPE PILE AND METHOD FOR INSTALLING STEEL PIPE PILE
Document Type and Number:
WIPO Patent Application WO/2020/184282
Kind Code:
A1
Abstract:
A steel pipe pile (10) that is provided with a steel pipe body (11), and plate-shaped drilling bits (12) attached to an end surface (11E) of the steel pipe body (11) at an angle (θ) with respect to a tangent to the circumferential direction of the steel pipe body and projecting in the axial direction of the steel pipe body (11), wherein the drilling bits (12) include: first drilling bits (121) that project from the end surface (11E) of the steel pipe body (11) in the axial direction of the steel pipe body (11) by an amount corresponding to a first height (H1), and second drilling bits (122) that project from the end surface (11E) of the steel pipe body (11) in the axial direction of the steel pipe body (11) by an amount corresponding to a second height (H2) greater than the first height (H1).
Inventors:
TODA KAZUHIDE (JP)
TAENAKA SHINJI (JP)
ISHIHAMA YOSHIROH (JP)
YANAGI YOSHITAKA (JP)
KUSAKA HIROKI (JP)
TANABE SHOUICHI (JP)
SAWAISHI MASAMICHI (JP)
SHOJI TOMOYUKI (JP)
TAENAKA SHINJI (JP)
ISHIHAMA YOSHIROH (JP)
YANAGI YOSHITAKA (JP)
KUSAKA HIROKI (JP)
TANABE SHOUICHI (JP)
SAWAISHI MASAMICHI (JP)
SHOJI TOMOYUKI (JP)
Application Number:
PCT/JP2020/008862
Publication Date:
September 17, 2020
Filing Date:
March 03, 2020
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
E02D5/28; E02D5/56; E02D7/22; E21B3/02
Foreign References:
| JP2009249893A | 2009-10-29 | |||
| JP2005299191A | 2005-10-27 | |||
| JP2005315050A | 2005-11-10 | |||
| JP2008255694A | 2008-10-23 | |||
| US20160348330A1 | 2016-12-01 |
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (JP)
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