ABSTRACT

A series of tests on hollow cylinder specimens were conducted to investigate the effects of different specimen preparation techniques on deformation property of Toyoura sand. All the specimens were 15 cm in outer diameter, 9 cm in inner diameter and 30 cm in height. Specimens were prepared using two different pluviation techniques. Direction of pluviation of dry sand particles through air was changed alternatively from clockwise to anticlockwise in one specimen following conventional procedures, while the others were prepared by pluviating sand particles in both the circumferential and radial directions. Local strains were measured using the modified version of pin-typed local deformation transducers at the middle height of the specimen. Overall deformation behavior during isotropic consolidation and quasi-elastic deformation properties were found to be different between the two pluviation techniques.