THE EFFECT OF THEORETICAL STRESS STUDIES ON CONSTRUCTION PRACTICE

ZUR AUSWIRKUNG SPANNUNGSTHEORETISCHER UNTERSUCHUNGEN AUF DIE BAUPRAXIS

In tunnel structures, where the full load bearing effect of the surrounding rock is enlisted, isolated theoretical stress studies are useless. In such cases, it is necessary to take into account the interaction with the rock so that the calculated deformations can be compared with the values measured in the course of the tunnel driving. Thus the rock mechanics input data can be improved step by step. In the case of detailed theoretical stress analysis it is necessary to carry out model tests. Using the example of a stable rock mass with anisotropic primary stress conditions, it is shown how the failure mechanism passes through phases. The effect of the supporting measures can be understood in A similar fashion. By means of a system of anchoring, guniting and insertion of steel mesh, the deformations necessary for the activation of the natural rock arching effect are allowed to occur, but are so reduced that failure does not occur. The case demonstrated in this example makes it possible with the aid of extended stress analysis to achieve an optimization in the design of the supporting structure. /TRRL/

  • Corporate Authors:

    Forschungsgesellschaft Strassenwesen in Oeiav

    Eschenbachgasse 9
    A-1010 Vienna,   Austria 
  • Authors:
    • Feder, G
  • Publication Date: 0

Language

  • German

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 13-16
  • Serial:
    • Schriftenreihe FGS
    • Issue Number: 67
    • Publisher: Forschungsgesellschaft Strassenwesen in Oeiav

Subject/Index Terms

Filing Info

  • Accession Number: 00189517
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD, TRIS
  • Created Date: Apr 12 1979 12:00AM