METHOD TO DETECT POSITION OF DRIVING SHAFT IN GROUND IMPROVEMENT METHOD OR SOIL CEMENT CONTINUOUS WALL CONSTRUCTION METHOD

Title:

METHOD TO DETECT POSITION OF DRIVING SHAFT IN GROUND IMPROVEMENT METHOD OR SOIL CEMENT CONTINUOUS WALL CONSTRUCTION METHOD

Document Type and Number:

Japanese Patent JP2015113564

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide an economically feasible and convenient method to detect the position of a driving shaft in a ground improvement or soil cement continuous wall construction method, capable of detecting a position of a drilling shaft by a simple process without using a measurement wire.SOLUTION: A position of a driving shaft 1 is calculated in the following process: rotating and driving the driving shaft 1 with a system housing box 6 that houses a detection and recording device 5 and is attached on a lateral side of a corotation prevention blade 4 or a shaft interval retention component 17; detecting an azimuth angle and a tilt angle corresponding to the drilling time by the driving shaft 1 with the detection and recording device; reading out detection data on the ground by the detection and recording device 5 when the driving shaft 1 is pulled out; inputting the detection data information and data information from a construction management device on the ground that measures the drilling time and drilling depth of the driving shaft 1; and calculating the position of the driving shaft 1 using the azimuth angle and the tilt angle of the driving shaft 1 at the drilling depth on the basis of the drilling time common to both the data information sets.

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Inventors:

HIRAI TAKU
KONISHI KAZUO
ONISHI TSUNEYASU
IMAI MASAYUKI
NOGUCHI TATSUYA
CHUMA TADASHI
NISHINO YOSHISUKE
SHIMIZU TAKAAKI
TAYA YUJI
KOKAKI HIROAKI
URASE MAKOTO
MIYUKI KENICHI

Application Number:

JP2013254020A

Publication Date:

June 22, 2015

Filing Date:

December 09, 2013

Export Citation:

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Assignee:

TAKENAKA DOBOKU
STEC CO LTD
TAKENAKA KOMUTEN CO

International Classes:

E02D3/12

Domestic Patent References:

JPH0932457A	1997-02-04
JP3233874B2	2001-12-04
JP3156049B2	2001-04-16
JP5191573B1	2013-05-08
JP5181068B1	2013-04-10

Attorney, Agent or Firm:

Masahiko Yamana
Takao Oshima

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