Experimental geomechanics / Mohamed Aris in European journal of environmental and civil engineering, Vol. 16 N° 1 (Janvier 2012)  

Experimental geomechanics : A laboratory study on the behaviour of granular material using bender elements [texte imprimé] / Mohamed Aris, Auteur ; Nadia Benahmed, Auteur ; Stéphane Bonelli, Auteur . - 2012 . - pp. 97-110.
Génie Civil
Langues : Anglais (eng)
in European journal of environmental and civil engineering > Vol. 16 N° 1 (Janvier 2012) . - pp. 97-110

Mots-clés :	Granular materials Microstructure Inherent and induced anisotropy Triaxial test Bender elements
Résumé :	On the basis of three methods of preparing well-differentiated triaxial Hostun HN31 sand specimens, namely moist tamping, dry pluviation and water pluviation, we highlight the influence of the reconstitution mode on the mechanical behaviour of sand. Piezoelectric transducers (bender elements) were installed in a triaxial cell and at the lateral edges of the sample in different directions (HH and HV) to investigate the structural anisotropy caused by each deposition mode and its evolution during undrained shearing tests, by measuring shear wave velocities. The results confirm and enrich the observations made with the scanning electron microscope and triaxial apparatus used by Benahmed, 2001; Benahmed, Canou & Dupla, 2004 on loose sand prepared using two different reconstitution procedures.
DEWEY :	624
ISSN :	1964-8189
En ligne :	http://www.tandfonline.com/doi/abs/10.1080/19648189.2012.668031