Dilatancy Behaviour of Normally Consolidated Cohesive Soils

Kamei, Takeshi; Takeno, Takeshi; Tokida, Makoto

doi:10.2208/jscej.1989.412_99

Cited by 1 publication

(4 citation statements)

References 7 publications

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“…The predicted results are compared with experimental data reported in Nakase and Kamei (1983). Kamei (1985), Nakase et al (1988), and Kamei and Nakase (1989) for cohesive soils. These experimental data were provided for the Kawasaki clay -mixture series, which is classified into three groups: of the soil samples has been reported elsewhere Kamei 1983, 1988;Kamei 1985;Nakase et al 1988).…”

Section: Stress-strain Relationshipsmentioning

confidence: 84%

“…Kamei (1985), Nakase et al (1988), and Kamei and Nakase (1989) for cohesive soils. These experimental data were provided for the Kawasaki clay -mixture series, which is classified into three groups: of the soil samples has been reported elsewhere Kamei 1983, 1988;Kamei 1985;Nakase et al 1988). The physical property and material parameters used in prediction of undrained triaxial tests are shown in Tables 1 and 2.…”

Section: Stress-strain Relationshipsmentioning

confidence: 97%

“…This evolution is assumption that the total strain response consists of elastic expressed as and plastic strain responses. This is represented as follows: (Nakase and Kamei 1983;Kamei 1985). ( b ) Model simulation.…”

Section: Stress-strain Relationshipsmentioning

confidence: 99%

“…The soil behaviour is assumed to be simulated by and is an isOtrOpic-hardening data obtained by Nakase and Kamei (1983), Kamei (1985),…”

Section: Introductionmentioning

confidence: 99%

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A combined hardening model of anisotropically consolidated cohesive soils

Hirai¹,

Kamei²

1991

Can. Geotech. J.

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A model introduced in the present paper is capable of describing the mechanical behaviour of anisotropically consolidated cohesive soils reasonably well. The salient features of the proposed model are summarized as follows: ( i ) generalized forms of the Cambridge models are given to both yield function and plastic potential; (ii) a combination of isotropic and kinematic hardening is used; (iii) a nonassociated-flow rule is proposed; ( i v ) the isotropic hardening involves plastic work not only related to volumetric change but also to deviatoric deformation; ( v ) the translation of the yield surface is specified by extending Ziegler's rule of kinematic hardening; ( v i ) the constitutive model has versatility and flexibility to describe expansion, translation, and rotation of a yield surface in stress space. Several undrained triaxial tests of anisotropically consolidated cohesive soils are simulated, and good agreement is observed between simulation and experimental data.Un modkle present6 dans cet article peut dCcrire raisonnablement bien le comportement mCcaniqu,e de sols cohCrents consolidCs dans des conditions anisotropes. Les principales caractkristiques du modkle proposC se rtsument comme suit : ( i ) des formes gCntralisCes des modkles de Cambridge sont donntes aux deux fonctions de limite Clastique et du potentiel plastique; (ii) une combinaison d'tcrouissage isotrope et cintmatique est utiliste; (iii) une loi d'tcoulement non-associC est proposCe; ( i v ) l'tcrouissage isotrope implique un travail plastique reliC non seulement au changement volumCtrique mais aussi a la dkformation deviatorique; ( v ) la translation de la surface d'Ctat limite est spCcifite au moyen d'une extension de la loi d'Ccrouissage cinkmatique de Ziegler; ( v i ) le modkle de comportement posskde de la versatilit6 et de la flexibilitt pour dtcrire l'expansion, la translation, et la rotation d'une surface d'Ctat limite dans l'espace des contraintes. Plusieurs essais triaxiaux non drain& de sols cohtrents consolidCs dans des conditions anisotropes sont simulCs, et l'on observe une bonne concordance entre la simulation et les donnCes expirimentales.Mots clPs : anisotropie, dilatance, sol cohCrent, essai de cisaillement consolid6 et non drainC, tquation de comportement, courbe contrainte-deformation, c~u r b e pression interstitielle -dkformation, cheminement de contrainte effective.[Traduit par la rkdaction]Can. Geotech. J. 28, 1-10 (1991)

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