Experimental study and discrete element method modeling of compression and permeability behaviors of weakly anisotropic sandstones

J Yu, W Yao, K Duan, X Liu, Y Zhu - … Journal of Rock Mechanics and Mining …, 2020 - Elsevier
Full understanding of the compression and permeability behaviors of weakly anisotropic
sandstones is a major challenge. The present work aims to address this challenging task …

On the use of discrete element method for multi-scale assessment of clay behavior

KA Jaradat, SL Abdelaziz - Computers and Geotechnics, 2019 - Elsevier
This paper presents a review of the physics controlling various forces between clay particles,
and the incorporation of these forces in a DEM contact model in PFC 3D. This contact model …

Mechanical properties of brittle rock governed by micro-geometric heterogeneity

G Liu, M Cai, M Huang - Computers and Geotechnics, 2018 - Elsevier
This research presents a new heterogeneity index to describe micro-geometric
heterogeneity induced by grain size variation in intact rock. Micro-geometric heterogeneity is …

DEM simulations on the influence of carbonate precipitation on liquefaction mitigation of sand

P Yang, E Kavazanjian, N Neithalath - Computers and Geotechnics, 2023 - Elsevier
Microbially induced carbonate precipitation (MICP) is an effective method to mitigate
liquefaction of sands under cyclic shear loading. In this paper, discrete element method …

Numerical investigation of the seepage mechanism and characteristics of soil-structure interface by CFD-DEM coupling method

X Yang, Z Xu, J Chai, Y Qin, J Cao - Computers and Geotechnics, 2023 - Elsevier
Interfacial seepage on soil-structure interface is common in water-related engineering, such
as dam, culvert, water tunnel, foundation pit, etc. As a weak part in the project, seepage …

An experimental micromechanical study of sand grain contacts behavior from different geological environments

CS Sandeep, H He, K Senetakis - Engineering Geology, 2018 - Elsevier
Grain scale tests can provide useful information about geological materials interface
properties and to understand the possible role of geological environments on their behavior …

Advances in Coupling Computational Fluid Dynamics and Discrete Element Method in Geotechnical Problems

Y Cao, HBK Nguyen, D Aikins, MR Karim, MM Rahman - Geotechnics, 2023 - mdpi.com
In some cases, the water content in granular soil increases to the extent that it becomes
saturated, which noticeably alters its responses. For example, the pore water pressure within …

Coupled flow network and discrete element modeling of injection-induced crack propagation and coalescence in brittle rock

G Liu, WC Sun, SM Lowinger, ZH Zhang, M Huang… - Acta Geotechnica, 2019 - Springer
We present a numerical analysis on injection-induced crack propagation and coalescence
in brittle rock. The DEM network coupling model in PFC is modified to capture the evolution …

Effects of non-plastic fines on liquefaction properties of saturated silt using discrete element modeling

C Huang, S Xu, Z Shen, L Zhang, L Wang, C Liu - Engineering Geology, 2023 - Elsevier
This paper presents a numerical investigation using the three-dimensional discrete element
method (DEM) to evaluate the macro-scale properties of saturated silt in a cyclic triaxial test …

Undrained true triaxial response of initially anisotropic particulate assemblies using CFM-DEM

MJ Salimi, A Lashkari - Computers and Geotechnics, 2020 - Elsevier
While simulation of the drained true triaxial response of particulate assemblies using
discrete element method (DEM) has caught the attention of researchers in the recent years …