https://doi.org/10.1051/epjconf/202124908015
Evolution of the coefficient of lateral earth pressure at rest with interparticle friction: a numerical study
Former PhD student, Department of Civil and Environmental Engineering, Imperial College London, London, UK
* e-mail: h.nguyen15@imperial.ac.uk
Published online: 7 June 2021
The grain-scale nature of evolution of the coefficient of lateral earth pressure at rest (K0) with interparticle friction (µp) is poorly understood. This study aims to use discrete element method simulations of vertical one-dimensional compression on both face centred cubic (FCC) samples and random monodisperse (RM) samples to link K0 and µp, and the results show that K0 increases with reductions in interparticle friction. Although K0 is dependent upon the sample density, patterns of evolutions with strain levels are likely to be unchanged with initial confining pressures. The stress-induced fabric becomes more anisotropic for samples with high values of the interparticle friction. The percentage of particles with a high value of the normal contact force increases with increasing strain levels as the interparticle friction increases in the simulations.
A video is available at https://doi.org/10.48448/ef8f-7540
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
