<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This paper presents an enhanced constitutive model integrating deviatoric hardening with a modified yield surface for overconsolidated clayey soils in a general framework of Cam-clay type models. Its performance was assessed with the simulation of drained and undrained triaxial tests on three clays at different consolidation states in comparison to two critical state models. The proposed model satisfactorily estimates the shear resistance, while capturing the smooth nonlinearity of the soil response.</p><p>Shear triaxial tests at constant mean pressure were performed on an overconsolidated marl to study the shear response. Their simulation attests the importance of deviatoric hardening integration.</p></abstract>

This paper presents an enhanced constitutive model integrating deviatoric hardening with a modified yield surface for overconsolidated clayey soils in a general framework of Cam-clay type models. Its performance was assessed with the simulation of drained and undrained triaxial tests on three clays at different consolidation states in comparison to two critical state models. The proposed model satisfactorily estimates the shear resistance, while capturing the smooth nonlinearity of the soil response.Shear triaxial tests at constant mean pressure were performed on an overconsolidated marl to study the shear response. Their simulation attests the importance of deviatoric hardening integration.

Critical state constitutive models and shear loading of overconsolidated clays with deviatoric hardening

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

This paper presents an enhanced constitutive model integrating deviatoric hardening with a modified yield surface for overconsolidated clayey soils in a...

Critical state constitutive models and shear loading of overconsolidated clays with deviatoric hardening

Article Category: Research Articles

Publié en ligne: 30 déc. 2019

Pages: 247 - 262

Reçu: 20 mai 2019

Accepté: 11 juil. 2019

DOI: https://doi.org/10.2478/sgem-2019-0024

Mots clés
constitutive models, critical state, overconsolidated clay, shear loading, deviatoric hardening

© 2019 Sara Rachdi et al. published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Critical state constitutive models and shear loading of overconsolidated clays with deviatoric hardening

Article Category: Research Articles

Publié en ligne: 30 déc. 2019

Pages: 247 - 262

Reçu: 20 mai 2019

Accepté: 11 juil. 2019

DOI: https://doi.org/10.2478/sgem-2019-0024

Mots clésconstitutive models, critical state, overconsolidated clay, shear loading, deviatoric hardening

© 2019 Sara Rachdi et al. published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
constitutive models, critical state, overconsolidated clay, shear loading, deviatoric hardening