After a brief review of the present state of knowledge concerning engineering classifications of jointed rock masses, a classification system developed in South Africa and known as the geomechanics classification is described. It is shown how this classification provides an engineering assessment of rock masses, based on a rating system of the most significant geological parameters and how this leads to direct practical guidelines such as selection of rock support and reinforcement measures. The main part of the paper is devoted to case histories involving recent applications of the geomechanics classification to tunnels, caverns, slopes and foundation problems in civil engineering and to haulage and chamber stability as well as to caveability assessment in mining projects. Results from these case studies, most of which are failure cases, demonstrate that rock mass behaviour can be effectively assessed, for practical engineering purposes, by means of the geomechanics classification. (A) /TRRL/

  • Supplemental Notes:
    • Proceedings of 2nd Australia-New Zealand Conference
  • Corporate Authors:

    Institution of Engineers

    Science House, Gloucester and Essex Streets
    Sydney,   Australia 
  • Authors:
    • Bienawski, Z T
  • Conference:
  • Publication Date: 1975

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 36-41

Subject/Index Terms

Filing Info

  • Accession Number: 00148007
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Proceeding
  • Files: ITRD, TRIS
  • Created Date: Aug 31 1977 12:00AM