Particle swarm optimization algorithm for the location of the critical non-circular failure surface in two-dimensional slope stability analysis

Yung Ming Cheng, Liang Li, Shi chun Chi, W. B. Wei

Research output: Journal article publicationJournal articleAcademic researchpeer-review

130 Citations (Scopus)


Locating the critical slip surface with the minimum factor of safety of a slope is a difficult N-P type optimization problem. In recent years, some modern global optimization methods have been developed with success in treating various types of problems, but very few of these methods have been applied to geotechnical problems. In this paper, use of a modified particle swarm optimization method with a termination criterion is proposed. The proposed algorithm is demonstrated to be effective and efficient in solving complicated problems with a high level of confidence.
Original languageEnglish
Pages (from-to)92-103
Number of pages12
JournalComputers and Geotechnics
Issue number2
Publication statusPublished - 1 Mar 2007


  • Control variables
  • Factor of safety
  • Global optimization
  • Particle swarm

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Computer Science Applications

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