2020 Volume 8 Issue 6 Pages 227-230
To investigate the macroscopic and microscopic mechanical behaviors of unsaturated structural loess, three- dimensional (3D) distinct element analyses of constant stress ratio (CSR) compression and collapsibility tests were performed. The evolutions of void ratio, deviator strain and bond failure number against vertical stress and water content were analyzed. The results show that the simulations reproduce the main mechanical behaviors of the unsaturated structural loess. The compression tests show that, with stress ratio decreases, the deviator strain and bond failure number increase. The collapsibility tests show that the void ratio decreased with an increases of water content.
