TY - JOUR
T1 - REV and its properties on fracture system and mechanical properties, and an orthotropic constitutive model for a jointed rock mass in a dam site in China
AU - Wu, Qiong
AU - Kulatilake, P. H.S.W.
N1 - Funding Information:
The first author of the paper is grateful to the Chinese Scholarship Foundation for providing a scholarship to conduct the research described in this paper as a Visiting Research Scholar at the University of Arizona. The authors would like to thank Professor Huiming Tang’s research group at the China University of Geosciences, Wuhan for providing the geological and geotechnical data used in this study.
PY - 2012/6
Y1 - 2012/6
N2 - Fracture data available for one of the rock masses (limestone) in the dam site of Yujian River Reservoir were used to build and validate a stochastic 3-D fracture network model, and to perform a REV and equivalent continuum study in 3-D. A number of relations are developed in the paper between the rock mass mechanical parameters and fracture tensor components in 3-D. Based on the mechanical parameter values obtained in every 45° direction in 3-D, the principal parameter values, principal directions and tensors are developed for rock mass mechanical parameters to represent the REV block size properties. An incrementally linear elastic, orthotropic constitutive model is suggested to represent the equivalent continuum pre-failure mechanical behavior of the jointed rock mass by incorporating the effect of joint geometry network by the fracture tensor components.
AB - Fracture data available for one of the rock masses (limestone) in the dam site of Yujian River Reservoir were used to build and validate a stochastic 3-D fracture network model, and to perform a REV and equivalent continuum study in 3-D. A number of relations are developed in the paper between the rock mass mechanical parameters and fracture tensor components in 3-D. Based on the mechanical parameter values obtained in every 45° direction in 3-D, the principal parameter values, principal directions and tensors are developed for rock mass mechanical parameters to represent the REV block size properties. An incrementally linear elastic, orthotropic constitutive model is suggested to represent the equivalent continuum pre-failure mechanical behavior of the jointed rock mass by incorporating the effect of joint geometry network by the fracture tensor components.
KW - Fracture tensor
KW - Mechanical properties
KW - Orthotropic constitutive model
KW - REV
KW - Scale effect
KW - Stochastic fracture network
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U2 - 10.1016/j.compgeo.2012.02.010
DO - 10.1016/j.compgeo.2012.02.010
M3 - Article
AN - SCOPUS:84860532936
VL - 43
SP - 124
EP - 142
JO - Computers and Geotechnics
JF - Computers and Geotechnics
SN - 0266-352X
ER -