JPS51134654A - Tunnel excavation positioning device - Google Patents

Tunnel excavation positioning device

Info

Publication number
JPS51134654A
JPS51134654A JP5909275A JP5909275A JPS51134654A JP S51134654 A JPS51134654 A JP S51134654A JP 5909275 A JP5909275 A JP 5909275A JP 5909275 A JP5909275 A JP 5909275A JP S51134654 A JPS51134654 A JP S51134654A
Authority
JP
Japan
Prior art keywords
positioning device
tunnel excavation
excavation positioning
excauation
complaying
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
JP5909275A
Other languages
Japanese (ja)
Inventor
Yuzo Sato
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.)
Japan Aviation Electronics Industry Ltd
Original Assignee
Japan Aviation Electronics Industry Ltd
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 Japan Aviation Electronics Industry Ltd filed Critical Japan Aviation Electronics Industry Ltd
Priority to JP5909275A priority Critical patent/JPS51134654A/en
Publication of JPS51134654A publication Critical patent/JPS51134654A/en
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To provide a simple divice for positioning and measuring during excauation, complaying a light source and mirror with a TV surveillance system.
JP5909275A 1975-05-16 1975-05-16 Tunnel excavation positioning device Pending JPS51134654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5909275A JPS51134654A (en) 1975-05-16 1975-05-16 Tunnel excavation positioning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5909275A JPS51134654A (en) 1975-05-16 1975-05-16 Tunnel excavation positioning device

Publications (1)

Publication Number Publication Date
JPS51134654A true JPS51134654A (en) 1976-11-22

Family

ID=13103337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5909275A Pending JPS51134654A (en) 1975-05-16 1975-05-16 Tunnel excavation positioning device

Country Status (1)

Country Link
JP (1) JPS51134654A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53143258A (en) * 1977-05-19 1978-12-13 Toho Chika Kouki Kk Method of and device for measuring deflection of drilled hole
JPS5872616U (en) * 1981-11-10 1983-05-17 宮永建設株式会社 Target support device for measuring buried pipe course in pipe burying equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53143258A (en) * 1977-05-19 1978-12-13 Toho Chika Kouki Kk Method of and device for measuring deflection of drilled hole
JPS5872616U (en) * 1981-11-10 1983-05-17 宮永建設株式会社 Target support device for measuring buried pipe course in pipe burying equipment

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