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

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

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

Author(s) -

Hao Bai,

Ruidong Li,

Wubin Wang,

Kang Xie,

Xiang Wang

Publication year - 2021

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2021/6623489

Subject(s) - root (linguistics) , discrete element method , geotechnical engineering , reinforcement , ultimate tensile strength , materials science , calibration , direct shear test , shear (geology) , composite material , structural engineering , mechanics , engineering , mathematics , physics , philosophy , linguistics , statistics

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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