Determination of the "design block' for tunnel supports in highly jointed rock

Y. Hatzor, R. E. Goodman

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


This chapter describes the particular procedures used to determine and describe the critical blocks for a given free face. The input data are the data on orientation for the major discontinuities, their distributions of spacing and their frictional resistance. After explaining the analytical procedure, predictions are made with the actual block movements described for a tunnel driven through a discontinuous rock mass. The excavation is followed in all of its phases, beginning with a study of the geological exploration data, through a careful observation of block failures in a complete pilot tunnel and finally with an investigation of the full size excavation. -from Authors

Original languageEnglish
Pages (from-to)263-292
Number of pages30
JournalUnknown Journal
StatePublished - 1 Jan 1993

ASJC Scopus subject areas

  • General Environmental Science
  • General Earth and Planetary Sciences


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