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

Hao Bai; Ruidong Li; Wubin Wang; Kang Xie; Xiang Wang

doi:10.1155/2021/6623489

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

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

Research output: Journal article publication › Journal article › Academic research › peer-review

13 Citations (Scopus)

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.

Original language	English
Article number	6623489
Journal	Mathematical Problems in Engineering
Volume	2021
DOIs	https://doi.org/10.1155/2021/6623489
Publication status	Published - 2021

ASJC Scopus subject areas

General Mathematics
General Engineering

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10.1155/2021/6623489

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title = "Investigation on Parameter Calibration Method and Mechanical Properties of Root-Reinforced Soil by DEM",

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.",

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AU - Li, Ruidong

AU - Wang, Wubin

AU - Xie, Kang

AU - Wang, Xiang

PY - 2021

Y1 - 2021

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AB - 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.

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DO - 10.1155/2021/6623489

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VL - 2021

JO - Mathematical Problems in Engineering

JF - Mathematical Problems in Engineering

M1 - 6623489

ER -

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

Abstract

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