[1] We report on laboratory experiments designed to investigate the strength evolution and formation mechanisms of cataclastic deformation bands hosted in unlithified sand, with particular focus on the role of grain breakage. Cataclastic deformation bands are characterized by particle size reduction and increased resistance to weathering compared to parent material. We recovered bands intact fr...

Particle breakage was reported to have great influence on the mechanical property of granular materials. However, limited studies were conducted quantify detailed effects relative density and initial grading particle behaviour materials under different confining pressures. In this study, a series monotonic drained triaxial tests performed isotropically consolidated with four gradings densities....