Title:
ROTARY PRESS-IN METHOD OF TUBULAR BODY, CONSTRUCTION METHOD OF WALL STRUCTURE AND ROTARY PRESS-IN DEVICE OF TUBULAR BODY
Document Type and Number:
Japanese Patent JP2019183626
Kind Code:
A
Abstract:
To provide a technique capable of discharging excavation muck generated from a drilling smoothly in performing a rotary press-in of a tubular body and a drilling of soil by a down-the-hole hammer in combination.SOLUTION: A rotary press-in method of a tubular body 3 is provided that presses in the soil while rotating the tubular body 3 having a drilling blade 3a on a lower end and is characterized in that a down-the-hole hammer 50 connected to a fluid supply pipe 53 consisting of multiple pipe is inserted inside of the tubular body 3, the fluid supply pipe 53 uses drive fluid for driving the down-the-hole hammer and the rotary press-in of the tubular body 3 configured to be capable of supplying the excavation muck discharge auxiliary fluid and the drilling of the soil by the down-the-hole hammer 50 in combination and transports the excavation muck generated by the drilling upward through inside of the tubular body 3 and discharges the transported excavation muck outside.SELECTED DRAWING: Figure 4
Inventors:
MURATA TOSHIHIKO
KAWAMURA YOSHITOMO
HORIKAWA YUKINORI
TAKAHASHI WATARU
KAWAMURA YOSHITOMO
HORIKAWA YUKINORI
TAKAHASHI WATARU
Application Number:
JP2019044430A
Publication Date:
October 24, 2019
Filing Date:
March 12, 2019
Export Citation:
Assignee:
GIKEN SEISAKUSHO KK
International Classes:
E21B4/06; E02D5/04
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Attorney, Agent or Firm:
Koji Hagiwara
Tetsuo Kanamoto
Naoki Ogita
Takashi Saito
Takuya Mine
Tetsuo Kanamoto
Naoki Ogita
Takashi Saito
Takuya Mine