APPLICATION OF HE-NE GAS LASER TO SURVEYING IN CONSTRUCTION WORKS /IN JAPANESE/

THE HE-NE GAS LASER USED IN CONSTRUCTION WORKS HAS THE ADVANTAGES THAT ITS MECHANISM IS SIMPLE AND ITS BEAM IS VISIBLE AND CONTINOUS. IT IS CONSIDERED TO BE MOST USABLE IN SURVEYING FOR CONSTRUCTION WORKS. WE HAVE HAD MUCH EXPERIENCE IN USING THE GAS LASER FOR SURVEYING THE STRAIGHT PART IN SHIELD-DRIVEN TUNNELS AND IN THE PRESENT WORK DEVELOPED A NEW DEVICE, CONSISTING OF A GAS LASER AND A TELESCOPE WITH MIRROR, TO SURVEY THE CURVED PART. USING THIS DEVICE, WE CAN QUICKLY AND EASILY CORRECT YAWING, PITCHING, ROTATING, ETC. ACCORDINGLY, HIGHLY ACCURATE DRIVING CAN BE ACHIEVED. A METHOD OF ADJUSTING SHIELD DIRECTION IS DESCRIBED. /AUTHOR/

• Supplemental Notes:
  • Vol 18, pp 237-241, 6 FIG, 1 TAB, 4 REF
• Corporate Authors:

  Kajima Inst Constr Tech /Japan

  ,    
• Authors:
  • Kohsaka, S
  • Kamiyama, Y
• Publication Date: 1969

Subject/Index Terms

• TRT Terms: Curves (Geometry); Gases; Helium; Lasers; Pitch (Dynamics); Rotation; Shields (Tunnels); Surveying; Yaw
• Uncontrolled Terms: Gas lasers
• Old TRIS Terms: Direction; Neodymium; Shields (Tunneling)
• Subject Areas: Construction; Highways;

Filing Info

• Accession Number: 00215447
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 12 1972 12:00AM