A PROBABILISTIC APPROACH TO GEOLOGY IN HARD-ROCK TUNNELING

The report presents an approach for evaluating alternative strategies for construction of hard-rock tunnels on the basis of expected cost. Central to the proposed approach is the use of subjective degree-of-belief probability in the evaluation of geologic conditions. Subjective probability is used as a quantitative measure of a geologist's uncertainty about the existence of various geologic conditions along the tunnel alignment. The general conclusion of the report is that the proposed approach will lead to a more thorough analysis of the uncertainties involved in predicting geologic conditions, and of the costs of employing various construction strategies in various geologic settings. The approach will not reduce the uncertainties in tunneling, but will lead to the selection of that construction strategy which is most likely to perform successfully and economically in any given hard-rock tunnel.

  • Corporate Authors:

    Massachusetts Institute of Technology

    School of Engineering
    Cambridge, MA  USA  02139

    National Science Foundation

    Division of Advanced Technology Applications
    Washington, DC  USA  20550
  • Authors:
    • Vick, S G
  • Publication Date: 1974-6

Media Info

  • Pagination: 236 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00091752
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: R75-11 Tech. Rpt.
  • Contract Numbers: NSF-GI-34029
  • Files: TRIS
  • Created Date: Sep 10 1981 12:00AM