CRITICAL GEOMETRY AND MATERIAL PARAMETERS OF SHALLOW TUNNELS

A method developed by the author is applied to the problem of the evaluation of critical geometry- and material- parameters of shallow tunnels. The limit load problem of the shallow tunnel is formulated as a linear eigenvalue problem. As shown previously this is possible although a nonlinear material law is underlaid. The eigenvalue problem is solved by the finite element method. The eigensolutions of the eigenvalue problem may be interpreted as the velocity field at the collapse of the system (collapse mechanism). Results are presented and discussed in detail for some ratios of the tunnel diameter to the overburden at different values of some dimensionless material parameters. The number of the covering abstract of the congress is TRIS no. 385148. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9061912377
• Supplemental Notes:
  • This paper was presented at the Fifth International Congress on Rock Mechanics, Melbourne, Australia, 1983, Volume 2, Theme C.
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000

  Australasian Institute of Mining and Metallurgy

  204 Lygon Street
  Carlton, Victoria  Australia  3053
• Authors:
  • Muehlhaus, H B
• Publication Date: 1983

Media Info

• Features: Figures; References;
• Pagination: p. 263-268
• Serial:
  • Publication of: Balkema (AA)
  • Publisher: AA Balkema

Subject/Index Terms

• TRT Terms: Breaking loads; Building materials; Conferences; Eigenvalues; Evaluation and assessment; Failure; Finite element method; Geometry; Loads; Materials; Methodology; Shape; Tunnels
• ITRD Terms: 8525: Conference; 9020: Evaluation (assessment); 5520: Failure; 6490: Finite element method; 5567: Load; 4555: Material (constr); 9102: Method; 9073: Shape; 3374: Tunnel
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I25: Design of Tunnels;

Filing Info

• Accession Number: 00385195
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 90 6191 237 7
• Report/Paper Numbers: BOOK
• Files: ITRD, TRIS, ATRI
• Created Date: Jun 28 1984 12:00AM