JPS6416909A - Method and device for detecting installation position of section measuring instrument - Google Patents
Method and device for detecting installation position of section measuring instrumentInfo
- Publication number
- JPS6416909A JPS6416909A JP17295187A JP17295187A JPS6416909A JP S6416909 A JPS6416909 A JP S6416909A JP 17295187 A JP17295187 A JP 17295187A JP 17295187 A JP17295187 A JP 17295187A JP S6416909 A JPS6416909 A JP S6416909A
- Authority
- JP
- Japan
- Prior art keywords
- measuring instrument
- photodetection
- installation position
- tunnel
- light beam
- 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.)
- Granted
Links
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
PURPOSE:To easily detect the installation position of a section measuring instrument by detecting the installation position from the distance to a photodetection member and the angles of measurement wave radiation directions at a predetermined reference position and a collimation position. CONSTITUTION:When a tunnel is digged, a reference laser beam 11 whose position can be recognized previously by measurement on a working face side is projected on nearly the tunnel flank. A support base 13 is installed near the light beam 11, an iron plate is fixed at its proper height, and the magnet stand of a support arm 14 is fitted to the iron plate by attraction. Then a cylinder tube 12 is adjusted and moved to the position where the light beam 11 travels through the hole of the cylinder tube 12. The section measuring instrument 1 is installed in the breadthwise center part of the tunnel and the main body of the measuring instrument 1 is adjusted to the horizontal by the level provided to the main body, thereby adjusting the direction wherein laser pulses are emitted to the horizon. Then a visible light beam l is projected on the base line of a photodetection plate 22 and then the angles theta of laser pulse emission at the horizontal reference position and the position where the laser strikes on the photodetection plate 22 are found; and the distance to the photodetection plate 22 is detected by the measuring instrument 1 to detect the installation position of the measuring instrument 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62172951A JP2578121B2 (en) | 1987-07-13 | 1987-07-13 | Method and apparatus for detecting installation position of cross-section measuring instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62172951A JP2578121B2 (en) | 1987-07-13 | 1987-07-13 | Method and apparatus for detecting installation position of cross-section measuring instrument |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6416909A true JPS6416909A (en) | 1989-01-20 |
JP2578121B2 JP2578121B2 (en) | 1997-02-05 |
Family
ID=15951381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62172951A Expired - Fee Related JP2578121B2 (en) | 1987-07-13 | 1987-07-13 | Method and apparatus for detecting installation position of cross-section measuring instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2578121B2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5968612A (en) * | 1982-10-14 | 1984-04-18 | Fuji Electric Corp Res & Dev Ltd | Focussing part in position tracking device for tunnel boring machine |
JPS60102580A (en) * | 1983-11-10 | 1985-06-06 | Ishikawajima Harima Heavy Ind Co Ltd | Position detecting apparatus of running unit |
JPS61294310A (en) * | 1985-06-24 | 1986-12-25 | Fujita Corp | Measuring instrument for cross section of tunnel |
-
1987
- 1987-07-13 JP JP62172951A patent/JP2578121B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5968612A (en) * | 1982-10-14 | 1984-04-18 | Fuji Electric Corp Res & Dev Ltd | Focussing part in position tracking device for tunnel boring machine |
JPS60102580A (en) * | 1983-11-10 | 1985-06-06 | Ishikawajima Harima Heavy Ind Co Ltd | Position detecting apparatus of running unit |
JPS61294310A (en) * | 1985-06-24 | 1986-12-25 | Fujita Corp | Measuring instrument for cross section of tunnel |
Also Published As
Publication number | Publication date |
---|---|
JP2578121B2 (en) | 1997-02-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |