A new empirical failure criterion for rock under polyaxial compressive stresses

R. Wang, J. M. Kemeny

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

29 Scopus citations

Abstract

In this paper a new empirical failure criterion is proposed to predict rock strength under polyaxial stress conditions. The proposed strength criterion is a three-dimensional extension of the popular two-dimensional criterion by Bieniawski (1974). The criterion has two empirical constants that can be determined using standard triaxial compression tests. Using these same empirical constants, failure under polyaxial conditions can be predicted. The accuracy of the failure criterion has been established by conducting a series of triaxial compression and hollow cylinder tests on Apache Leap tuff. First, the results of the triaxial compression tests are used to determine the two empirical constants for Apache Leap tuff. Secondly, using these two constants, the failure of the hollow cylinders of Apache Leap tuff under various conditions are predicted and compared with the actual experimental results under the same conditions. The new empirical failure criterion matches the experimental results extremely well. Rock Mechanics Daemen & Schultz (eds).

Original languageEnglish (US)
Title of host publication35th U.S. Symposium on Rock Mechanics, USRMS 1995
Editors Daemen, Schultz
PublisherAmerican Rock Mechanics Association (ARMA)
Pages453-458
Number of pages6
ISBN (Print)9054105526, 9789054105527
StatePublished - Jan 1 1995
Event35th U.S. Symposium on Rock Mechanics, USRMS 1995 - Reno, United States
Duration: Jun 5 1995Jun 7 1995

Publication series

Name35th U.S. Symposium on Rock Mechanics, USRMS 1995

Other

Other35th U.S. Symposium on Rock Mechanics, USRMS 1995
CountryUnited States
CityReno
Period6/5/956/7/95

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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