NEW CONCEPTS CONCERNING THE STATICS OF TUNNELS

NUOVI CONCETTI SULLA STATICA DELLE GALLERIE

The basic factors to be considered in tunnel drilling are: the natural stress fields of the rock prior to excavation; the physical properties of the rock; the construction method to be used; and the type of supporting structures. From the statics point of view the problem is defined as one of three dimensional tensions and deformations at the attaching face, which are statically indeterminate. The time factor, in terms of the viscous behaviour of the rock is of great importance during and after construction. A rheologic model is developed for calculating the relationship between stress and speed of deformation at the drilling face. /TRRL/

• Corporate Authors:

  Casa Editrice la fiaccola

  Via Carlo Ravizza 62
  Milano,   Italy 
• Authors:
  • Lombardi, G
• Publication Date: 1975-5

Language

• Italian

Media Info

• Features: Figures;
• Pagination: p. 465-482
• Serial:
  • Rivista della Strada
  • Volume: 44
  • Issue Number: 406
  • Publisher: Casa Editrice la fiaccola

Subject/Index Terms

• TRT Terms: Construction management; Control devices; Deformation; Drilling; Mathematical models; Physical properties; Rheology; Rock excavation; Rocks; Statics; Stresses; Studies; Time; Tunnels
• Old TRIS Terms: Rheological studies; Rock properties; Time factor
• ITRD Terms: 5595: Deformation; 3871: Drilling; 6473: Mathematical model; 5442: Rheology; 4154: Rock; 5433: Statics; 5575: Stress (in material); 3374: Tunnel
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; I54: Construction of Tunnels;

Filing Info

• Accession Number: 00133760
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Aug 23 1976 12:00AM