ANALYSIS OF A MULTIPLE TUNNEL INTERACTION PROBLEM. PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN GEOMECHANICS, 11-15 APRIL 1988, INNSBRUCK, AUSTRIA. VOLUMES 1 - 3

Four closely interacting mass rapid transit tunnels have been constructed through generally very stiff old alluvium overlain by soft clayey or loose granular sediments of the Kallang formation and fill. The tunnel construction problem was modelled by an assemblage of isoparametric finite elements and the results of analysis compared with field measurements as well as empirical prediction. An elastic ideal was found to be a reasonable assumption for estimating intervening ground movements due to tunnel interaction. As a whole, predictions of bending moment and thrust distributions of linings also compared well with measurement results. A maximum radial deformation ratio of 0.1% decreasing linearly with pillar width between tunnels was found to be appropriate for determining interaction bending moments. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/906191809X
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • LEE, S L
  • Lo, K W
  • Chang, L K
• Publication Date: 1988

Media Info

• Features: References;
• Pagination: p. 1487-92
• Serial:
  • Publication of: Balkema (AA)
  • Publisher: AA Balkema

Subject/Index Terms

• TRT Terms: Alluvium; Clay; Conferences; Construction; Deflection; Deformation; Excavation; Finite element method; Mathematical models; Motion; Radials; Rapid transit; Tunnel lining; Tunnels
• ITRD Terms: 4030: Alluvium; 4177: Clay; 8525: Conference; 3655: Construction; 5586: Deflection; 5595: Deformation; 5155: Excavation (process); 6490: Finite element method; 6473: Mathematical model; 5483: Movement; 9065: Radial; 1181: Rapid transit system; 3374: Tunnel; 3385: Tunnel lining
• Subject Areas: Bridges and other structures; Construction; Highways;

Filing Info

• Accession Number: 00492671
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-6191-809-X
• Files: ITRD, TRIS
• Created Date: Mar 31 1990 12:00AM