Stochastic Three-Dimensional Joint Geometry Model and the Properties of REV for a Jointed Rock Mass

Abstract:

The lithology of rock mass isnon-homogeneity，anisotropy, andexists size effect. The mechanical parameters of rock mass gotten by engineeringapproaches cannot reflect these properties. Therefore, a newmethod of determining the mechanical parameters of jointed rock mass isproposed: gneiss in Shuichang open-pit mine was selected as a case, thefracture system of the rock mass was measured and analyzed by non-contactmeasuring system of 3GSM and probabilisticmethod,the probability distributions of geometry parameters were analyzed and a 3Djoint geometry model was made by using the program of 3D network modeling.Cubes with different sizes were selected to be tested by tri-axial compressionof numerical simulation with 3DEC based on the 3D network model of joints,thus, the REV and its mechanical parameters were determined, which providedcredible parameters for slope stability analysis.

• Periodical: Advanced Materials Research (Volumes 1079-1080)
• Pages: 266-271
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1079-1080.266
• Online since: December 2014
• Authors: Wen Hui Tan*, Zhong Hua Sun, Ning Li, Xiao Hong Jiang
• Keywords: 3D Network Modeling, 3DEC, Jointed Rock Mass, Mechanical Parameters, Rev

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