Calibration of the Triaxial Hyperbolic Mohr-Coulomb Elastoplastic Model Parameters on Laboratory Rock Mechanics Tests
Publication: International Journal of Geomechanics
Volume 12, Issue 6
Abstract
Herein, a methodology is presented for the calibration of the triaxial hyperbolic Mohr-Coulomb (HMC) elastoplastic model on a set of experimental data of conventional rock mechanics tests on intact rocks. It is demonstrated here that based on uniaxial compression, triaxial compression, and direct or indirect tension tests on intact rock specimens in the laboratory, 15 parameters of the elastic and hardening plastic HMC model pertaining to Carrara (Lorano) marble may be deduced in a straightforward manner. This procedure may be applied to any other rock type as well. Furthermore, an extension of the five-parameter HMC failure criterion to a six-parameter HMC criterion with a cap is proposed for the better representation of intact rock behavior in multiaxial loading conditions.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors would like to thank the financial support from the EC 6th Framework Project TUNCONSTRUCT (Technology Innovation in Underground Construction) with Grant No. NMP2-CT-2005-011817.
References
Böker, R. (1915). “Die Mechanik der bleibenden Formänderung in kristallinisch aufgebauten Körpern.” Verhandl. Deut. Ingr. Mitt. Forsch., 175, 1–51 (in German).
Exadaktylos, G., and Stavropoulou, M. (2008). “A specific upscaling theory of rock mass parameters exhibiting spatial variability: Analytical relations and computational scheme.” Int. J. Rock Mech. Min. Sci., 45(7), 1102–1125.
Gens, A., Carol, I., González, N., Caballero, A., and Farolera, D. (2007). “Soil and rock models.” TUNCONSTRUCT Deliverable 1.1.2.4, Library of Model Subroutines, TUNCONSTRUCT, Graz, Austria.
Ramsey, J. M., and Chester, F. M. (2004). “Hybrid fracture and the transition from extension fracture to shear fracture.” Nature, 428(6978), 63–66.
Stavropoulou, M., and Exadaktylos, G. (2009). “From laboratory, geological and TBM data to input parameters for simulation models.” Chapter 5, Technology innovation in underground construction, G. Beer, ed., Taylor & Francis, London.
van Eekelen, H. A. M. (1980). “Isotropic yield surfaces in three dimensions for use in soil mechanics.” Int. J. Numer. Anal. Meth. Geomech., 4(1), 89–101.
Von Karman, T. (1911). “Festigkeitsversuche unter allseitigem Druck.” Z. Verein Deut. Ingr., 55, 1749–1759 (in German).
Information & Authors
Information
Published In
International Journal of Geomechanics
Volume 12 • Issue 6 • December 2012
Pages: 618 - 631
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Jul 1, 2010
Accepted: Oct 7, 2011
Published online: Oct 10, 2011
Published in print: Dec 1, 2012
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.