ASSESSING PROBLEMS OF UNDERGROUND STRUCTURES. PART TWO

Several examples are presented to further explain the mathematical analysis of rock mechanics that is discussed in relationship to tunnel support techniques. One case examined is creeping rock masses where deformations do not occur within a short time after excavation but progress slowly many months after the end of the excavations. Another case involves the use of thin concrete linings according to the techniques developed by Bernold. A third case illustrate the effort to create tangential compression stresses inside a circular concrete lining and increase its resistance to fissuration by hydraulic pressure through the use of high pressure grouting of the rock mass around the tunnel. examples are also given where rock bolts or rock anchors are used, either above or in connection with shotcrete layers, steel meshes or concrete linings. /HRIS/

• Corporate Authors:

  IPC Electrical Electronic Press Limited

  Dorset House Stamford Street
  London SE1 9LU,   England 
• Authors:
  • Jaeger, C
• Publication Date: 1976-1

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 29-36
• Serial:
  • International Water Power and Dam Construction
  • Volume: 28
  • Issue Number: 1
  • Publisher: IPC Electrical Electronic Press Limited

Subject/Index Terms

• TRT Terms: Compression; Cracking; Creep; Deformation; Excavations; Grouting; Mass; Mathematical analysis; Rock mechanics; Rockbolts; Rocks; Stresses; Tunnel lining; Tunnel supports; Tunnels; Underground structures; Water pressure
• Uncontrolled Terms: Pressure grouting; Rock mass
• Subject Areas: Bridges and other structures; Geotechnology; Highways;

Filing Info

• Accession Number: 00129610
• Record Type: Publication
• Files: TRIS
• Created Date: May 14 1976 12:00AM