Discrete element method simulation of granular column collapse

Elnaz Kermani, Tianbin Li, Tong Qiu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Understanding of various natural phenomena and industrial processes such as landslides and bulk material handling requires research on the flow of granular materials. In this study, a 3-D numerical investigation of axisymmetric collapse of granular columns has been conducted using a commercial and research discrete element method (DEM) code. The simulated granular columns have an initial radius and height of 5.68 mm and 5.71 mm, respectively, rendering an initial aspect ratio (height/radius) of approximately 1.0. The columns consist of uniform spherical quartz particles with a diameter of 0.32 mm. The nonlinear particle-particle contact behavior and rotational resistance are indirectly accounted for in the DEM model. Comparison between the simulated final deposit morphology (e.g., final height and runout distance) with experimental results that are readily available in literature reveals the importance of rotational resistance in realistic simulations of granular column collapse.

Original languageEnglish (US)
Title of host publicationAdvances in Transportation Geotechnics and Materials for Sustainable Infrastructure - Selected Papers from the Proceedings of the Geo-Hubei 2014 International Conference on Sustainable Infrastructure
PublisherAmerican Society of Civil Engineers (ASCE)
Pages1-8
Number of pages8
Edition250 GSP
ISBN (Print)9780784478509
DOIs
StatePublished - 2014
EventGeo-Hubei 2014 International Conference on Sustainable Infrastructure: Advances in Transportation Geotechnics and Materials for Sustainable Infrastructure - Yichang, Hubei, China
Duration: Jul 20 2014Jul 22 2014

Publication series

NameGeotechnical Special Publication
Number250 GSP
ISSN (Print)0895-0563

Other

OtherGeo-Hubei 2014 International Conference on Sustainable Infrastructure: Advances in Transportation Geotechnics and Materials for Sustainable Infrastructure
Country/TerritoryChina
CityYichang, Hubei
Period7/20/147/22/14

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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