RATIONAL DESIGN OF TUNNEL SUPPORTS: TUNNEL SUPPORT LOADING CAUSED BY ROCK FAILURE

Two methods are presented for the analysis of tunnel support loading caused by rock failure. In the first part closed-form solutions are used; in the second, numerical techniques. Emphasis is put upon the statical indeterminacy of the problem and upon the necessity for considering the relative displacements between ground and support. From this follows the need for a realistic calculation of the stiffness of ground and support, as well as the need to consider the sequential development of the interaction between these two elements. It is assumed that the rock mass behavior during failure is softening and dilatant. Interface problems between ground and support that can strongly influence the effective support stiffness are discussed.

• Supplemental Notes:
  • Master's Thesis.
• Corporate Authors:

  University of Minnesota, Minneapolis

  Department of Civil and Mineral Engineering, 122 Civil and Mineral Engineering Building
  Minneapolis, MN  United States  55455-0220

  Army Corps of Engineers

  Missouri River Division
  Omaha, NE  United States 
• Authors:
  • DAEMEN, JJK
• Publication Date: 1975-5

Media Info

• Pagination: 441 p.

Subject/Index Terms

• TRT Terms: Calculation; Civil engineering; Classical field theory; Compressive strength; Computer programs; Design; Engineering geology; Failure; Finite element method; Fracture mechanics; Geological events; Interfaces; Load transfer; Loads; Mass; Material reinforcement; Mineral dislocations; Mining engineering; Rock mechanics; Rocks; Soil structure interaction; Statically indeterminate frames; Statics; Stiffness; Strength of materials; Structural analysis; Structural design; Structural engineering; Structural members; Structural supports; Tunnel lining; Tunnel supports; Tunneling; Tunnels
• Uncontrolled Terms: Compressive properties; Computation; Ground; Loading; Rock mass; Tunnel design
• Old TRIS Terms: Geological conditions; Statically indeterminate structure; Supports
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways;

Filing Info

• Accession Number: 00092565
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: MRD-TR-75 Final Rpt.
• Contract Numbers: DACW45-74-C-0066
• Files: TRIS
• Created Date: Nov 5 1976 12:00AM