Simulation and Application of Protection Facilities for Rockfall Hazard Area Based on the Discrete Element Method and Photogrammetry

Yu Sen Lai, Jun Min Wang, Chia Ming Lo*, Jian Jie Lin

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

This study focused on the characteristics of the rockfall disaster at the intersection of the Miaoli NO.62 Road and Jin-Gua Bridge through unmanned aerial vehicle and field investigation. The study also used photogrammetry to establish a high resolution 3D model and constructed a discrete element method to simulate the process of the rockfall movement and assessment effectiveness of the rockfall barrier. Numerical parameters calibrated with physical modeling are used to investigate the coefficient of restitution. Then, the numerical simulation method is further applied to the field in a full-scale case study. Finally, the results can serve as a reference for rockfall disaster prevention and associated renovation project planning.

Original languageEnglish
Pages (from-to)127-136
Number of pages10
JournalJournal of Chinese Soil and Water Conservation
Volume48
Issue number3
StatePublished - 1 Sep 2017

Keywords

  • Discrete element method
  • Numerical model
  • Photogrammetry
  • Physical modeling
  • Rockfall barrier
  • Rockfall disaster

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