Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7852
Title: Stability analysis of rock slopes with a modified Hoek-Brown failure criterion
Authors: Yang, XL
Li, L
Yin, JH 
Keywords: Limit analysis
Modified Hoek-Brown failure criterion
Rock slope
Stability
Issue Date: 2004
Publisher: John Wiley & Sons
Source: International journal for numerical and analytical methods in geomechanics, 2004, v. 28, no. 2, p. 181-190 How to cite?
Journal: International journal for numerical and analytical methods in geomechanics 
Abstract: The original Hoek-Brown (HB) failure criterion was used to analyse the stability of rock slopes. For highly fractured rock, the original HB failure criterion has been modified, but its effect on the stability of rock slopes has not been studied. Within the framework of the kinematical approach of limit analysis, this paper computes the rigorous upper bounds of stability factors of homogeneous rock slopes with the modified HB failure criterion under the plane strain condition, by employing a 'generalized tangential' technique. In such technique, instead of using the modified HB failure criterion, a series of linear failure surfaces tangent to the actual non-linear failure surface are utilized to derive the upper bound solutions, incorporating a new parameter n ranging from 0.5 to 0.65. The numerical results are compared with other published solutions for the case of n = 0.5. The effects of the n on the stability factors of rock slopes are discussed.
URI: http://hdl.handle.net/10397/7852
ISSN: 0363-9061
EISSN: 1096-9853
DOI: 10.1002/nag.330
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