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Title:
INVESTIGATION METHOD FOR CAST-IN-PLACE PILE DRIVING GROUND AND GROUND INVESTIGATION MACHINE ATTACHMENT
Document Type and Number:
Japanese Patent JP2012172473
Kind Code:
A
Abstract:

To provide an investigation method for a cast-in-place pile driving ground and a ground investigation machine attachment, by which work man-hours are decreased and the bearing capacity of a ground can be accurately grasped.

A ground is drilled at a position where a cast-in-place pile is driven by using a casing rod 11 and the upper end and the lower end of a protective pipe 6 extended to the hole bottom of a drill hole H with the casing rod 11 built in are held at a prescribed position, while an automatic ram sounding investigation machine 1 is installed at a position above the drill hole H in a state that a rod 3 is inserted in the protective pipe 6, and setting is completed. Then, the rod 3 is struck by a hammer 2 and the ground is investigated by the investigation machine 1.


Inventors:
FUKUMOTO SHIGERU
TAGUCHI HIROBUMI
IGARASHI HIROKO
Application Number:
JP2011037806A
Publication Date:
September 10, 2012
Filing Date:
February 24, 2011
Export Citation:
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Assignee:
TOA HARBOR WORKS CO LTD
International Classes:
E02D1/02; E02D5/38
Domestic Patent References:
JP2007255012A2007-10-04
JPS56150212A1981-11-20
JP2001064954A2001-03-13
JP2003213661A2003-07-30
JP2003321828A2003-11-14
JP2000080635A2000-03-21
JPH11222839A1999-08-17
Attorney, Agent or Firm:
Shinichi Ogawa
Takashi Noguchi
Takayoshi in the daytime
Kenji Sato
Isao Hirai
Masao Sakaizawa
Kazuhiko Saishita