CONCEPTION AND DIMENSIONING OF THE SECTION OF A TUNNEL

CONCEPCION Y DIMENSIONAMIENTO DE LA SECCION DEL TUNEL

This paper describes the state-of-the-art of the design of It is concerend principally with the effect of stress on the transition from primary to secondary stresses, as the anelasticity, sound propagation, plastic deformation and decompression around the tunnel, and emphasizes the fracture, and recrystallization and grain growth that researchers. A study is presented of deformations between includes a comprehensive bibliography. to the rigidity of the area left unlined between the tunnelling face and the part already lined. The development from the old rigid linings to flexible ones is described, with special reference to the new Austrian method and to the use of prefabricated wedges installed by the shield method. It is emphasized that the rupture of concrete linings which have been laid can sometimes be due to shear stress along the joints. Subsidence caused by a gap between tunnel and lining and by seepage of underground water into the tunnel is also studied. In conclusion, the paper stresses the importance of the auscultation of completed works for the purpose of proving hypotheses and refining methods of calculation. See also IRRD abstracts nos. 216638 to 216643. /TRRL/

  • Availability:
  • Corporate Authors:

    Ministry of Public Works, Spain

    P.O. Box 282
    Madrid 7,   Spain 
  • Authors:
    • Jimenez, J A
  • Publication Date: 1975-12

Language

  • Spanish

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00131802
  • Record Type: Publication
  • Source Agency: Transportation & Soil Mechanics Laboratory, Spain
  • ISBN: Task 01
  • Report/Paper Numbers: Monograph II-C2b
  • Contract Numbers: DAJ37-68-C-0208
  • Files: ITRD, TRIS
  • Created Date: Jun 5 1976 12:00AM