A study on a shape effect in rockfall simulation using DEM

S. Moriguchi, I. Tachibana, K. Terada, S. Takase, T. Kyoya, J. Kato, S. Sawada, A. Yashima

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

Abstract

The effect of a shape accuracy is investigated in rockfall simulation using DEM. A simple model test of rockfall were carried out. Because rockfall behaves non-linearly, enough number of trials was considered in the model test, and distributions of running distance and elevation angle are obtained from the experimental results. Then DEM simulations were carried out to reproduce the model test. In the simulation, some kinds of rockfall models with different shape accuracy were used. By comparing the experimental results and simulated results, a relation between the shape accuracy and the modeling error was discussed. Based on the obtained results, it was found that there is a possibility to define criteria of shape accuracy for allowable modeling error quantitatively.

Original languageEnglish
Title of host publicationGeomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
PublisherTaylor and Francis - Balkema
Pages213-218
Number of pages6
ISBN (Print)9781138027077
DOIs
Publication statusPublished - 2015
EventInternational Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014 - Cambridge, United Kingdom
Duration: 2014 Sep 12014 Sep 3

Publication series

NameGeomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
Volume1

Other

OtherInternational Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
CountryUnited Kingdom
CityCambridge
Period14/9/114/9/3

ASJC Scopus subject areas

  • Geophysics

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