Probabilistic key block analysis at Yucca Mountain

D. C. Kicker, M. Lin, J. M. Kemeny, C. A. Stone

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


A probabilistic assessment of the possible formation of key blocks within the potential repository horizon has been performed based on the orientations of discontinuities present in the Exploratory Studies Facility at Yucca Mountain, Nevada. A primary objective of the key block analysis is to provide a statistical description of block sizes formed by fractures around the emplacement drifts openings. This analysis has considered various emplacement drift orientations, examined unsupported drifts, and applied both static and seismic loading conditions. The use of key block theory provides a practical tool for assessing rock mass behavior surrounding emplacement drift openings. The results from this study provide block size data to support waste package design and provide degraded drift profile data to support other repository performance assessment analyses.

Original languageEnglish (US)
Title of host publication4th North American Rock Mechanics Symposium, NARMS 2000
PublisherAmerican Rock Mechanics Association (ARMA)
Number of pages8
ISBN (Print)9058091554, 9789058091550
StatePublished - 2000
Event4th North American Rock Mechanics Symposium, NARMS 2000 - Seattle, United States
Duration: Jul 31 2000Aug 3 2000

Publication series

Name4th North American Rock Mechanics Symposium, NARMS 2000


Other4th North American Rock Mechanics Symposium, NARMS 2000
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics


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