Investigation on Parameter Calibration Method and Mechanical Properties of Root-Reinforced Soil by DEM

Hao Bai, Ruidong Li, Wubin Wang, Kang Xie and Xiang Wang

Mathematical Problems in Engineering, 2021, vol. 2021, 1-18

Abstract:

The behavior of root-soil system has raised more and more attention in both ecological and geotechnical fields. In this study, a two-dimensional discrete element method is employed using PFC2D to simulate the root-reinforced soil. The root system is mimicked by chains of bonded discs, while the soil is modeled by granular particles. The tensile strength of the root is modeled by interdiscs’ bonding strength. Three laboratory tests were studied to calibrate the micromechanical parameters of DEM. Finally, direct shear tests on rooted soil are simulated to investigate the influence of different root characteristics on the root reinforcement effect.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:6623489

DOI: 10.1155/2021/6623489

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