Title:
STEEL PIPE PILE BURYING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/153217
Kind Code:
A1
Abstract:
The present invention strengthens ground. In a holder installation step, a crushed stone group 2 is installed on the surface of ground G where a steel pipe pile 1 is driven, such that one end-section opening of the crushed stone group holder 2 is in contact with the surface of the ground G. In a crushed stone group introduction step, a crushed stone group 3 is introduced into the crushed stone group holder 2 installed on the surface of the ground G in the holder installation step. In a subsequent driving step, the crushed stone group 3 in the crushed stone group holder 2 is pushed downward by a circumferential blade 13 during a process of driving the steel pipe pile 1 into the ground G by means of a tip blade 12 by turning the steel pipe pile 1 in a positive direction.
Inventors:
KOBAYASHI TOSHIO (JP)
KASAHARA YASUHIRO (JP)
KASAHARA YASUHIRO (JP)
Application Number:
PCT/JP2021/000688
Publication Date:
August 05, 2021
Filing Date:
January 12, 2021
Export Citation:
Assignee:
SANSEI INC (JP)
International Classes:
E02D5/56; E02D7/22
Foreign References:
| JP2002363980A | 2002-12-18 | |||
| JP2011163098A | 2011-08-25 | |||
| JP2018028241A | 2018-02-22 | |||
| JP2013221387A | 2013-10-28 | |||
| JPS60238525A | 1985-11-27 |
Attorney, Agent or Firm:
SUZUKI Hitoshi (JP)
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