On collapse of 2D granular columns: A grain-scale investigation

Xuzhen He, Wei Wu, Dichuan Zhang, Jong Kim

Research output: Contribution to journalConference articlepeer-review


This study uses the Discrete Element Method (DEM) to investigate the grain-scale mechanisms that give rise to the diverse flow phenomena of granular material, particularly the collapse of granular columns. The small-scale 2D experiments conducted with aluminium rods are used as benchmarks. It is found that the stiffness or the viscous dissipation at the contacts are not important factors to influence the kinetic, but the apparent friction angle is the dominant one, which is contributed by several sources.

Original languageEnglish
Pages (from-to)157-160
Number of pages4
JournalSpringer Series in Geomechanics and Geoengineering
Issue number216849
Publication statusPublished - Jan 1 2018
EventChina-Europe Conference on Geotechnical Engineering, 2016 - Vienna, Austria
Duration: Aug 13 2016Aug 16 2016


  • DEM
  • Granular columns

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials

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