A comparison between DDA and DEM in numerical simulations of earthquake induced landslides

Guangqi Chen, Lu Zheng, Kouki Zen

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

Abstract

Due to strong ground motion of earthquake, the debris sliding at high velocity can travel a distance several times longer than the height of the slope. It is suggested that the energy is transported from slope to debris mass by the collisions occurred during earthquake. In order to simulation this unexpected motion process with DDA, the displacement accuracy of DDA applied to collision is investigated in this paper. With appropriately estimated contact resistance force, it shows that the behavior of the system trends toward the analytic solution and the resulting precision is sufficient. Finally, a comparison of behavior under collision between DDA and DEM is discussed based on the simulation results.

Original languageEnglish
Title of host publicationGeomechanics and Geotechnics
Subtitle of host publicationFrom Micro to Macro - Proceedings of the International Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010
Pages551-557
Number of pages7
Publication statusPublished - Dec 1 2011
EventInternational Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010 - Shanghai, China
Duration: Oct 10 2010Oct 12 2010

Publication series

NameGeomechanics and Geotechnics: From Micro to Macro - Proceedings of the International Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010
Volume1

Other

OtherInternational Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010
CountryChina
CityShanghai
Period10/10/1010/12/10

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

Fingerprint Dive into the research topics of 'A comparison between DDA and DEM in numerical simulations of earthquake induced landslides'. Together they form a unique fingerprint.

Cite this