DEVICE AND METHOD FOR MEASURING PROPULSION LOCUS OF PROPULSION OBJECT IN SHIELD PIPE JACKING METHOD

Title:

DEVICE AND METHOD FOR MEASURING PROPULSION LOCUS OF PROPULSION OBJECT IN SHIELD PIPE JACKING METHOD

Document Type and Number:

Japanese Patent JP3787700

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a measuring device which measures a propulsion locus of a propulsion object in a shield pipe jacking method, and is capable of measuring 2-dimensional displacement and rotational displacement with the same means.
SOLUTION: Each intermediate measuring apparatus 4a, 4b, 4c has a pair of CCD imaging means for imaging a front and a rear 2-dimensional targets 16, and 2-dimensional targets to be imaged by a front and a rear CCD imaging means. A measurement-reference-point measuring apparatus 6 has a CCD imaging means for imaging the target of the hindermost intermediate apparatus 4c, and a 2-dimensional target 16 to be imaged by the hindermost imaging means. The device is provided with the apparatuses 4a, 4b, 4c, the apparatus 6, a tip measuring apparatus 5 fitted with a 2-dimensional tip target to be imaged by the CCD imaging means of the forefront intermediate measuring apparatus, a distance measurement means which finds the distance between each target 16 and each measuring apparatus which images this, and a processing means 7. The processing means 7 finds displacement between individual targets or measuring apparatuses, on the basis of image displacement information obtained from individual CCD imaging means and distance information obtained from the distance measurement means. Moreover, propulsion loci of a shield machine 1 and a buried pipe 2 with respect to a measurement point are found.

More Like This:

JP6681775	Face pressing pressure control rotary excavator
JPH07548	[Name of device] Lead head in underground pipe construction

Inventors:

Katsuki Watari
Juro Hamada

Application Number:

JP2002347790A

Publication Date:

June 21, 2006

Filing Date:

November 29, 2002

Export Citation:

Click for automatic bibliography generation Help

Assignee:

Tomori Construction Co., Ltd.
Daiju Co., Ltd.

International Classes:

E21D9/093; G01C15/00; F16L1/024; (IPC1-7): G01C15/00; E21D9/093; //F16L1/024

Domestic Patent References:

JP2003227718A
JP11002520A
JP63184696A
JP59179318U

Attorney, Agent or Firm:

Masahiro Morita

Previous Patent: SPEED CHANGE CONTROL METHOD FOR AUTOMATIC TRANSMISSION

Next Patent: ROTARY BLADE, PROTECTIVE PLATE, AND BUSH CUTTER