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Investigation on strength and stability of jointed rock mass using three‐dimensional numerical manifold method
Author(s) -
He L.,
An X. M.,
Zhao X. B.,
Zhao Z. Y.
Publication year - 2012
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.2147
Subject(s) - rock mass classification , classification of discontinuities , stability (learning theory) , geotechnical engineering , excavation , manifold (fluid mechanics) , computer simulation , geology , process (computing) , rock mass rating , rock mechanics , structural engineering , engineering , computer science , mathematics , mechanical engineering , simulation , mathematical analysis , machine learning , operating system
SUMMARY This paper proposes a numerical model for jointed rock masses within the 3‐D numerical manifold method (NMM) framework equipped with a customized contact algorithm. The strength of rock sample containing a few sets of discontinuities is first investigated. The results of models with simple geometries are compared with the available analytical solutions to verify the developed computer code, whereas models with complex geometries are simulated to better understand the fundamental behavior and failure mechanism of jointed rock mass. Furthermore, the stability of jointed rock mass in an underground excavation is studied, where rock failure process is determined by the 3‐D NMM simulation. The simulation results provide valuable guidance on excavation process design and stabilization design in rock engineering practice. Copyright © 2012 John Wiley & Sons, Ltd.