Title :

Experimental Study and DEM Simulation of Size Effects on the Dry Density of Rockfill Material

Author(s) :

Zhao, Xiaolong [Auteur]
Laboratoire de Mécanique, Multiphysique, Multiéchelle - UMR 9013 [LaMcube]
Zhu, Jungao [Auteur]
Hohai University
Wu, Yunlong [Auteur]
Laboratoire de Mécanique, Multiphysique, Multiéchelle - UMR 9013 [LaMcube]
Jia, Yun [Auteur]
Laboratoire de Mécanique, Multi-physique, Multi-échelle (LaMcube) - UMR 9013
Bur, Nicolas [Auteur]
Laboratoire de Mécanique, Multi-physique, Multi-échelle (LaMcube) - UMR 9013
Colliat, Jean-Baptiste [Auteur]
Laboratoire de Mécanique, Multi-physique, Multi-échelle (LaMcube) - UMR 9013
Bian, Hanbing [Auteur]
Laboratoire Génie Civil et géo-Environnement (LGCgE) - ULR 4515

Journal title :

Frontiers in Physics

Abbreviated title :

Front. Phys.

Volume number :

10

Publisher :

Frontiers Media SA

Publication date :

2022-03-28

ISSN :

2296-424X

English keyword(s) :

rockfill material
maximum dry density
compactability
gradation
surface vibration test
particle size
discrete element modeling

HAL domain(s) :

Physique [physics]/Mécanique [physics]

English abstract : [en]

The initial dry density has a significant effect on the mechanical behavior of rockfill material (RFM). The size effects on the minimum/maximum dry density (referred to as dry density, ρd) of RFM still need further study. ...
Show more >The initial dry density has a significant effect on the mechanical behavior of rockfill material (RFM). The size effects on the minimum/maximum dry density (referred to as dry density, ρd) of RFM still need further study. To investigate the relationship between ρd and dM, a series of surface vibration compaction tests and DEM simulations are performed on the samples with different maximum particle sizes dM. Both the physical and numerical results exhibit that ρd increases fast when dM ranges from 10 to 40 mm. When dM exceeds 40 mm, ρd increases slowly and tends to be a constant. Results indicate that ρd is affected by the gradation. To consider the gradation effect, a normalized parameter λ is introduced, and the relation between ρd and dM can be characterized by an empirical equation.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
Centrale Lille

Collections :

• Laboratoire de Mécanique, Multi-physique, Multi-échelle (LaMcube) - UMR 9013

Submission date :

2022-07-05T07:33:52Z
2022-07-05T12:26:43Z