Modeling of Laboratory Tests on Saint-Roch-de-l’Achigan Clay with S-CLAY1S Model
Publication: International Journal of Geomechanics
Volume 17, Issue 2
Abstract
This technical note presents some results of numerical simulations performed to evaluate the influence of anisotropy and destructuration on the stress–strain response of Saint-Roch-de-l’Achigan clay. The oedometer and triaxial tests were simulated with the finite-element method using two different constitutive models to represent the soil: the S-CLAY1S model, which accounted for anisotropy and destructuration, and the isotropic modified Cam clay model (MCC), which was used for comparison. In contrast to the MCC model, the S-CLAY1S model was able to simulate the compression curve for the whole range of stresses with one parameter set and, hence, represented soil behavior in the triaxial test in a more realistic way than the MCC. The results of this study confirm that when using recommended procedures for the determination and calibration of the input parameters, the S-CLAY1S model represents well the overall behavior of Saint-Roch-de-l’Achigan clay in the specific cases analyzed.
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Acknowledgments
The authors thank Eletrobras and CAPES (through the “Ciência sem Fronteiras” programme) for financial support, Professor Esther Marques for providing the necessary experimental data and technical support, and the geotechnical staff at the Federal University of Rio de Janeiro and Chalmers University of Technology for their support during the development of the research.
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Published In
International Journal of Geomechanics
Volume 17 • Issue 2 • February 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Oct 23, 2015
Accepted: Mar 28, 2016
Published online: May 18, 2016
Discussion open until: Oct 18, 2016
Published in print: Feb 1, 2017
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