LASER LINE-UP BEAMS TUNNELS ON COURSE

Lasers for tunnel boring machine (TBM) alignment have been used by tunnel engineers for many years but their full potential has not been extensively explored. One explanation may be the laser's initial cost. Also, a number of misunderstandings and myths have arisen as to just what the laser is capable of, the way in which it behaves and what it can be used for. This article discusses a development in which the passive use of lasers for tunnel alignment has now been complemented by a more active application involving computer guidance of TBMs with automatic correction of directional errors.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0041414X
• Corporate Authors:

  Morgan-Grampian Limited

  30 Calderwood Street
  London SE18 6QH,   England 
• Authors:
  • Renshaw, A
• Publication Date: 1981-10

Media Info

• Pagination: p. 60-62
• Serial:
  • Tunnels & Tunnelling International
  • Volume: 13
  • Issue Number: 9
  • Publisher: Progressive Media Markets, Ltd
  • ISSN: 0041-414X

Subject/Index Terms

• TRT Terms: Alignment; Computers; Lasers; Tunneling; Tunneling machines; Tunnels
• Subject Areas: Bridges and other structures; Construction; Public Transportation;

Filing Info

• Accession Number: 00372012
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Apr 29 1983 12:00AM