CONTROL OF WATER LEAKAGE WHEN TUNNELLING UNDER URBAN AREAS IN THE OSLO REGION

In urban areas where there are soft clay deposits above bedrock, ground water leakage into rock tunnels can cause severe subsidence and damage to structures. Such conditions are frequently encountered in the Oslo region. The paper describes semi-empirical procedures that have been developed for assessing the consequences of a given leakage level on pore pressures and settlements in clay deposits above bedrock, and how to assess minimum leakage level that can be achieved with present pre-grouting technology. The use of permanent lining and ground water re-charging as a means of reducing the potential consequences of water leakage is also discussed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/3000091696
• Corporate Authors:

  Swiss Federal Institute of Technology Zurich

  Institute for Geotechnical Engineering
  Zurich,   Switzerland  8093
• Authors:
  • Karlsrud, K
  • Kveldsvik, V
• Conference:
  • Planning and Engineering for the Cities of Tomorrow. Second International Conference on Soil Structure Interaction in Urban Civil Engineering
  • Location: Zurich, Switzerland
  • Date: 2002-3-7 to 2002-3-8
• Publication Date: 2002

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 263-269

Subject/Index Terms

• TRT Terms: Bedrock; Groundwater; Groundwater recharge; Grouting; Leakage; Pore pressure; Rock excavation; Settlement (Structures); Soft clays; Subsidence (Geology); Tunnel lining; Tunneling; Urban areas
• Geographic Terms: Oslo (Norway)
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; Public Transportation;

Filing Info

• Accession Number: 00930488
• Record Type: Publication
• ISBN: 3000091696
• Files: TRIS
• Created Date: Sep 5 2002 12:00AM