A Device for Triaxial Compression Test of Sand

strength evaluation of wet reinforced silty sand by triaxial test

conventional investigations on the behavior of reinforced and unreinforced soils are often investigated at the failure point. in this paper, a new concept of comparison of the behavior of reinforced and unreinforced soil by estimating the strength and strength ratio (deviatoric stress of reinforced sample to unreinforced sample) at various strain levels is proposed. a comprehensive set of labor...

Grain-based characterisation and acoustic wave propagation in a sand packing subject to triaxial compression

This paper presents a study of 3D deformation process in a dry packing of Ottawa sand. X-ray microtomography is used to acquire scans of a triaxial test of the sample at five axial stress levels. Using 3D image analysis we are able to resolve particle scale features. Particle tracking combined with finite element simulations reveal that the rotational transformation of particles is one of the p...

Triaxial behavior of sand-mica mixtures using genetic programming

This study investigates an application of genetic programming (GP) for modeling of coarse rotund sand– mica mixtures. An empirical model equation is developed by means of GP technique. The experimental database used for GP modeling is based on a laboratory study of the properties of saturated coarse rotund sand and mica mixtures with various mix ratios under a 100 kPa effective stresses, becaus...

Numerical Investigation on the Reference Crushing Stress of Granular Materials in Triaxial Compression Test

Particle crushing dominates the deformation behaviour of granular materials under significantly high compressive and shear stress. A proposed constitutive model has been verified to predict crushing behaviour of granular materials with different crushability and adopted one kind of reference crushing stress. It is noted that no positive dilatancy of granular material in triaxial test occurs onc...

Effect of Cementation on the Shear Strength of Tehran Gravelly Sand Using Triaxial Tests