Limit analysis of 2-D tunnel keyblocks

M. Mauldon*, K. C. Chou, Y. Wu

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

14 Scopus citations


Described is a limit analysis of keyblock stability which yields bounds on the ranges of stability and instability, and their region of overlap, potential instability. The mathematical problem of finding these limits is carried out by using linear programming. The resulting stability measure is mapped on to a gray scale and plotted on a grid representing all possible keyblocks around a tunnel. A parametric study of the effects of joint orientation and initial stress ratio on block stability is presented.

Original languageEnglish (US)
Pages (from-to)510
Number of pages1
JournalInternational journal of rock mechanics and mining sciences & geomechanics abstracts
Issue number3-4
StatePublished - Apr 1997
EventProceedings of the 1997 36th US Rock Mechanics ISRM International Symposium - New York, NY, USA
Duration: Jun 29 1997Jul 2 1997

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Engineering(all)

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