JPS527267A - Measurement method of a tunnel section - Google Patents

Measurement method of a tunnel section

Info

Publication number
JPS527267A
JPS527267A JP8282575A JP8282575A JPS527267A JP S527267 A JPS527267 A JP S527267A JP 8282575 A JP8282575 A JP 8282575A JP 8282575 A JP8282575 A JP 8282575A JP S527267 A JPS527267 A JP S527267A
Authority
JP
Japan
Prior art keywords
tunnel
measurement method
tunnel section
section
prependiculaly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8282575A
Other languages
Japanese (ja)
Inventor
Mitsuho Wada
Ryoichi Sakano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taisei Corp
Original Assignee
Taisei Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taisei Corp filed Critical Taisei Corp
Priority to JP8282575A priority Critical patent/JPS527267A/en
Publication of JPS527267A publication Critical patent/JPS527267A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To measure a needed section of a tunnel simply and accurately by taking a photograph of reflected light from a light source and reducing it. The lighting ray flux with the limited breadth is projected on the surface of the inner wall, all over the section of the tunnel across the center line of the tunnel prependiculaly.
COPYRIGHT: (C)1977,JPO&Japio
JP8282575A 1975-07-07 1975-07-07 Measurement method of a tunnel section Pending JPS527267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8282575A JPS527267A (en) 1975-07-07 1975-07-07 Measurement method of a tunnel section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8282575A JPS527267A (en) 1975-07-07 1975-07-07 Measurement method of a tunnel section

Publications (1)

Publication Number Publication Date
JPS527267A true JPS527267A (en) 1977-01-20

Family

ID=13785168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8282575A Pending JPS527267A (en) 1975-07-07 1975-07-07 Measurement method of a tunnel section

Country Status (1)

Country Link
JP (1) JPS527267A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60213811A (en) * 1984-04-09 1985-10-26 Tokyu Constr Co Ltd Automatic measuring apparatus of cross section of tunnel
JPS61191792A (en) * 1985-02-16 1986-08-26 マツダ株式会社 Drilling apparatus for rock driller

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50156956A (en) * 1974-06-10 1975-12-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50156956A (en) * 1974-06-10 1975-12-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60213811A (en) * 1984-04-09 1985-10-26 Tokyu Constr Co Ltd Automatic measuring apparatus of cross section of tunnel
JPS61191792A (en) * 1985-02-16 1986-08-26 マツダ株式会社 Drilling apparatus for rock driller

Similar Documents

Publication Publication Date Title
JPS51142372A (en) Time measuring device
JPS527267A (en) Measurement method of a tunnel section
JPS51131627A (en) Optical instrument
JPS5210127A (en) Automatic exposure device
JPS51146850A (en) Optical detector
JPS5280859A (en) Measuring method using interferometer
JPS5238944A (en) Optical system for scanning
JPS5251965A (en) Precise photographic measurement using projector and camera
JPS5228872A (en) Method for measuring the size of thin plane
JPS5359451A (en) Abnormality diagnosis method of reflected light type measuring apparatus
JPS5216256A (en) Measuring device of light ray type
JPS51131648A (en) Optical height measuring apparatus
JPS5234780A (en) Ultrasonic beam scaning apparatus
JPS548000A (en) Registered post undertaking apparatus
JPS5435764A (en) Distance measuring apparatus
JPS5240163A (en) Measurement method
JPS523447A (en) Optical device of line image formation
JPS52149172A (en) Detector for photosensitive substance
JPS5258551A (en) Object observation device
JPS52139460A (en) Measurement for curved surface
JPS5382451A (en) Method and apparatus of comparing and inspecting surface roughness
JPS51117658A (en) Model detector
JPS5384757A (en) Inspecting method for position, shape, or the like of objects
JPS5296045A (en) Diameter measurement of optical fibers
JPS5240128A (en) Enlarger