Estimation of the shear strength of coarse-grained soils with fine particles - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Transportation Geotechnics Année : 2020

Estimation of the shear strength of coarse-grained soils with fine particles

Résumé

The determination of the shear strength of coarse-grained soils in standard shear devices is a challenging task due to the presence of large grains. Three approaches could be used to reduce the grain size of the tested specimen. This study aimed to determine whether the shear strength of a coarse-grained soil with fines (particles smaller than 0.08 mm) can be estimated by the parallel gradation approach. Direct shear tests were conducted on parallel graded specimens of two soil types with different low plastic fines content. Two criteria can be used to select the dry density of the reconstituted specimen: the same dry density or the same relative density as the initial soil. The results showed that when the specimens had a low fines content, both criteria resulted in a similar dry density of the reconstituted soil, and the shear strength of the initial soil was correctly estimated. However, for the specimens with a high fines content, the friction angle of the initial soil was correctly estimated, and its cohesion was overestimated when the reconstituted soil was tested at the same dry density as the initial soil. A cohesion-fines content relationship was proposed to predict the initial soil cohesion.
Fichier principal
Vignette du fichier
Final Manuscript - Kouakou.pdf (3.07 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-02898105 , version 1 (10-02-2021)

Identifiants

Citer

N.M. M. Kouakou, O. Cuisinier, F. Masrouri. Estimation of the shear strength of coarse-grained soils with fine particles. Transportation Geotechnics, 2020, 25, pp.100407. ⟨10.1016/j.trgeo.2020.100407⟩. ⟨hal-02898105⟩
73 Consultations
490 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More