Investigation on Parameter Calibration Method and Mechanical Properties of Root-Reinforced Soil by DEM-Reference-Cited by-同舟云学术

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

Published:2021-04-23 Issue: Volume:2021 Page:1-18
ISSN:1563-5147
Container-title:Mathematical Problems in Engineering
language:en
Short-container-title:Mathematical Problems in Engineering

Author:

Bai Hao¹^ORCID,Li Ruidong²^ORCID,Wang Wubin³^ORCID,Xie Kang²^ORCID,Wang Xiang⁴

Affiliation:

1. Sichuan Expressway Construction & Development Group Co., Ltd., Chengdu 610041, China

2. Department of Civil Engineering, Central South University, Changsha 410075, China

3. National Engineering Laboratory for Technology of Geological Disaster Prevention in Land Transportation, Southwest Jiaotong University, Chengdu 611731, China

4. Department of Civil Engineering, Hong Kong University, Hong Kong, China

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.

Publisher

Hindawi Limited

Subject

General Engineering,General Mathematics

Link

http://downloads.hindawi.com/journals/mpe/2021/6623489.pdf

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