Extension of two-dimensional DDA on co-seismic slope stability analysis considering dynamic shearing strength

Mingyao Xia, Guangqi Chen

Research output: Contribution to journalConference articlepeer-review

Abstract

In this study, a new model for evaluating the dynamic shear strength of slope material has been proposed in DDA for earthquake-induced landslide simulation. The effect of fatigue and accumulated damage in evaluating the dynamic strength of rocks has been considered to judge the failure of joint contacts in the DDA block system. The accuracy of the extended DDA method is verified by simulating several examples, such as Single-Degree-Of-Freedom (SDOF) system and practical landslide model. The simulation results show that the new model considering the dynamic effect is more accurate and feasible to dynamic slope failure under seismic waves. Compared with the original DDA, the extended DDA method can be better applied to analyze earthquake-induced landslides with dynamic shearing strength considered.

Original languageEnglish
Article number032032
JournalIOP Conference Series: Earth and Environmental Science
Volume861
Issue number3
DOIs
Publication statusPublished - Oct 27 2021
Externally publishedYes
Event11th Conference of Asian Rock Mechanics Society, ARMS 2021 - Beijing, China
Duration: Oct 21 2021Oct 25 2021

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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