Effect of particle grain size on its shear strength behaviour of soils

Abstract

This research explores the impact of compaction of soil on the strength properties of soil by conducting the shear tests on several soil samples with different moisture content and sandy soil with various particle sizes. In thisexperimental investigation, the shear strength of soil was evaluated by the cohesion and internal frictional angle. Soil structure and moisture content are the fundamental components influencing the cohesive property. Variations in the particle compositions and moisture content of cohesive soil modify the contact state and its structural arrangement, thus considerably influencing the macroscopic properties of clay soil. Various soil particle structures reformed the shear deformation by altering the structural composition and inter-granular arrangement. This investigation shows further understanding of fine and micro mechanism of shear strength characteristics of various components of soil structures.