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

Autor: Rachdi Sara, Jahangir Emad, Tijani Michel, Serratrice Jean-François
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Studia Geotechnica et Mechanica, Vol 41, Iss 4, Pp 247-262 (2019)
Druh dokumentu: article
ISSN: 2083-831X
DOI: 10.2478/sgem-2019-0024
Popis: 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.
Databáze: Directory of Open Access Journals