The Numerical Simulation of the Triaxial Test of Cemented Coarse-Grained Soils
Cemented coarse-grained soils have both the properties of coarse-grained soils and concrete. This paper used discrete element method (DEM) to simulate of the drained monotonic load triaxial tests of coarse-grained soils and cemented coarse-grained soils respectively, the microscopic parameters of numerical models were calibrated based on the tests. The characteristics of the cemented coarse-grained soils and the microscopic mechanism were analyzed. The results showed that, the cemented coarse-grained soils have the higher modulus and strength compared with coarse-grained with adding the 3% cement in the specimens and appear the significant strain softening after the stress reaches the peak value; the deformation of the soil particles,the friction between soil particles and the crack of the cement bond are the mainly internal factors.
Guangfan Li, Yong Huang and Chaohe Chen
B. Xu et al., "The Numerical Simulation of the Triaxial Test of Cemented Coarse-Grained Soils", Advanced Materials Research, Vols. 250-253, pp. 2640-2644, 2011