Shosuke Toki

TL;DR: In this article, a series of drained tests was carried out on a dense anisotropic sand using a hollow cylinder torsional shear apparatus, and the experimental results showed that the shear deformation of sand due to the rotation of principal stress axes are not negligible as compared with that due to a shear with fixed principal stresses axes and the effects of inherent anisotropes on the deformation and volume change behavior are considerably large.

TL;DR: In this article, the physical properties of sands with different primary parameters were investigated extensively, including grain density, shape and size distribution of all samples, and some index properties characterizing physical properties, such as maximum and minimum void ratios, crushability and angle of repose of sands, were also measured.

TL;DR: A cooperative test program of cyclic undrained triaxial tests was performed by five laboratories for both loose and dense air-pluviated specimens of Toyoura Sand, which is a clean fine uniform sand having subangular to angular shaped particles as mentioned in this paper.

TL;DR: In this article, the angle of repose of sands is investigated; the slope angle of conical heaps of granular materials formed statically on a flat plate were observed as a typical angle of position.