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

• Autorzy: Rachdi Sara , Jahangir Emad , Tijani Michel , Serratrice Jean-François

Identyfikatory

DOI

10.2478/sgem-2019-0024

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

constitutive models; critical state; overconsolidated clay; shear loading; deviatoric hardening

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2019
• Tom: Vol. 41, nr 4
• Strony: 247--262
• Opis fizyczny: Bibliogr. 44 poz., tab., rys.

Twórcy

autor

Rachdi Sara

• PhD student, Centre de Géosciences, MINES ParisTech, 35 rue Saint-Honoré, 77300, Fontainebleau France

autor

Jahangir Emad

• PhD, Centre de Géosciences, MINES ParisTech, 35 rue Saint-Honoré, 77300, Fontainebleau France

autor

Tijani Michel

• PhD, Centre de Géosciences, MINES ParisTech, 35 rue Saint-Honoré, 77300, Fontainebleau France

autor

Serratrice Jean-François

• PhD, Cerema Méditerranée, 30 rue Albert Einstein, CS 70499, 13593 Aix en Provence France

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).