Title:
CONSTRUCTION METHOD OF ROTATION PRESSURE-INSERTION STEEL PIPE PILE
Document Type and Number:
Japanese Patent JP2017227112
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To control a block state of a steel pipe pile in conformity to a construction condition of soil or the like, and to improve construction performance and support force capability in a balanced manner.SOLUTION: A construction method of a rotation pressure-insertion steel pipe pile has: a process for positioning a rod top 2a of an oscillation rod 2 at a lower part rather than a first block plate 11A at the lowest stage at the inside of the steel pipe pile 1, and pressure-inserting the steel pipe pile 1 while oscillating the oscillation rod 2; a process for making the oscillation rod 2 arrive at a pile arrival target depth P1 of the steel pipe pile 1 at a support layer G1 before the oscillation rod arrives at a preset rod deepest target depth P2; and a process for pressure-inserting the steel pipe pile 1 while oscillating and pulling up the oscillation rod 2 after the oscillation rod 2 arrives at the rod deepest target depth P2.SELECTED DRAWING: Figure 7
Inventors:
MORIYASU SHUNSUKE
MYONAKA SHINJI
ISHIHAMA YOSHIRO
KUSAKA HIROTAKA
TANAKA HIROMASA
MYONAKA SHINJI
ISHIHAMA YOSHIRO
KUSAKA HIROTAKA
TANAKA HIROMASA
Application Number:
JP2017086691A
Publication Date:
December 28, 2017
Filing Date:
April 25, 2017
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
International Classes:
E02D5/28; E02D7/20; E02D13/00
Attorney, Agent or Firm:
Masatake Shiga
Mitsuo Teramoto
Sumio Tanai
Tomoo Katsumata
Hiroshi Yamaguchi
Mitsuo Teramoto
Sumio Tanai
Tomoo Katsumata
Hiroshi Yamaguchi