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Modeling of Laboratory Tests on Saint-Roch-de-l'Achigan Clay with S-CLAY1S Model

L. D. G. Deotti ; Minna Karstunen (Institutionen för bygg- och miljöteknik, Geologi och geoteknik) ; M. C. F. de Almeida ; M. D. S. de Almeida
International Journal of Geomechanics (1532-3641). Vol. 17 (2017), 2,
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: Numerical simulation, Constitutive model, Soft clay, Interparticle bonding, Triaxial test, Oedometer test, Engineering

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Denna post skapades 2017-03-22. Senast ändrad 2017-04-28.
CPL Pubid: 248645


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