Theory of three-dimensional discontinuous deformation analysis and its application to a slope toppling at Amatoribashi, Japan

Jian Hong Wu, Yuzo Ohnishi, Gen Hua Shi, Satoshi Nishiyama

Research output: Contribution to journalArticle

43 Citations (Scopus)


A three-dimensional (3D) rock slope toppling occurred in a discontinuous rock mass. To simulate the failure process and study the mechanism of this rock failure with contact and large displacement in 3D, a new discrete numerical method has been developed called the 3D discontinuous deformation analysis (DDA). This article first introduces the basic principles and then derives the formulas in detail. Finally, the slope failure simulation is applied as an example to investigate the applicability of this new method to rock slope failure research. The simulation results indicate the advantages of using this new method to study the mechanism of a rock slope failure with 3D behavior. International Journal of Geomechanics

Original languageEnglish
Pages (from-to)179-195
Number of pages17
JournalInternational Journal of Geomechanics
Issue number3
Publication statusPublished - Sep 2005
Externally publishedYes



  • Failures
  • Japan
  • Numerical analysis
  • Rock masses
  • Simulation
  • Slope stability
  • Soil deformation
  • Three-dimensional analysis

ASJC Scopus subject areas

  • Soil Science

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