Reliability analysis of shear strength parameters of rock mass derived using the Hoek-Brown criterion

Title: Reliability analysis of shear strength parameters of rock mass derived using the Hoek-Brown criterion
Creator: Wen, Yiming; Wang, Chun; Zhao, Lei; You, Greg; Yang, Jianzhong; Zeng, Xiaoyan; Yang, Ze; Sun, Wei; Cheng, Yong; Lin, You
Date: 2018
Type: Text; Journal article
Identifier: http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/166788
Identifier: vital:13461
Identifier: ISBN:0022-2755
Abstract: Determining the mechanical parameters of a rock mass is a difficult but crucial matter in studies pertaining to stability. In this study, the Hoek-Brown criterion is used to derive the shear strength parameters of a rock mass; the parameters are subsequently optimized through reliability analyses, including the nonlinear Mohr-Coulomb envelope, optimized slopes, and least square variance methods. Further, through a case study of the Jianshan open pit mine, the c and ϕ values of the orebody were comparatively studied using the proposed method. The nonlinear Mohr-Coulomb envelope method and the optimized slopes method can attain reliability values exceeding 80%, as required by Chinese standards.
Publisher: Books and Journals Private Ltd.
Relation: Journal of Mines, Metals and Fuels Vol. 66, no. 8 (2018), p. 438-443
Rights: This metadata is freely available under a CCO license
Subject: 09 Engineering; Hoek-Brown criterion; Least square variance; Non-linear Mohr-Coulomb envelope; Reliability
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