Title:
地盤補強工法
Document Type and Number:
Japanese Patent JP6752416
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a ground reinforcing method capable of constructing a concrete columnar reinforcing body with which it is possible to efficiently obtain great bearing force with simple construction by supposing a small-scale foundation pile.SOLUTION: On a tip surface of a casing steel pipe 2, an end surface plate 3, which has a diameter Dthat is 1.5 to 3.2 times of a diameter d of the casing steel pipe and in which a concave part 8 having a circular outline of the diameter Dis formed in a central portion, is installed via a joint member 12 fixed on the end surface plate so that it is disengageable. Slope surface parts 6 and 7 that slope in opposite directions up and down each other are provided on a flange part 4 of the end surface plate 3. A casing steel pipe with the end surface plate 11 rotationally penetrates underground, cement-based injection material for a pile body is injected into the casing steel pipe, the casing steel pipe is rotated in an opposite direction to a rotary direction at the time when penetrating, and the casing steel pipe is pulled out while the end surface plate remains in order to construct a concrete columnar reinforcing body.SELECTED DRAWING: Figure 1
Inventors:
Takahiko Enomoto
Application Number:
JP2016207415A
Publication Date:
September 09, 2020
Filing Date:
October 22, 2016
Export Citation:
Assignee:
Sigma Base Co., Ltd.
International Classes:
E02D5/30; E02D5/34; E02D5/38; E02D11/00
Domestic Patent References:
| JP2005133289A | ||||
| JP2003027475A | ||||
| JP2016070059A | ||||
| JP2006077388A | ||||
| JP2004003123A |
Foreign References:
| GB2477845A |
Attorney, Agent or Firm:
Yasuhiko Kagawa
Tomohiro Mori
Tomohiro Mori