TRENCHLESS TUNNELLING. AIRPORT MAINTENANCE

The development is described of ways to lay underground systems without excavation and the inevitable surface disruption that goes with it. Using advanced electronic tunnelling technology, stable, clay-lined tunnels may be produced without digging. The small diameter tunnels can be up to 120 m long and at any required depth. The cutting technique involves the soil being cut by small diameter, high pressure jets of liquefied clay. A significant feature is the capability to remotely steer the boring tool. An electronic detection system can measure the tunnel position to within 2.5 cm at normal depths, enabling obstacles to be avoided and curves to be negotiated. The system will benefit airports which will derive benefits from avoiding disruption to runway operations.

• Availability:
  • Find a library where document is available. Order URL: https://www.library.northwestern.edu/find-borrow-request/requests-interlibrary-loan/lending-institutions.html
• Publication Date: 1990-11

Media Info

• Pagination: p. 17
• Serial:
  • Airports International
  • Publisher: Key Publishing, Limited
  • ISSN: 0002-2853

Subject/Index Terms

• TRT Terms: Airport runways; Electronic control; Tunneling; Tunneling machines
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Pavements; I60: Maintenance;

Filing Info

• Accession Number: 00600889
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 31 1991 12:00AM