Search for critical failure surface in slope stability analysis by gravitational search algorithm

Mohammad Khajehzadeh, Mohd. Raihan Taha, Ahmed El-Shafie, Mahdiyeh Eslami

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Slope stability analysis of any natural or artificial slope aims at determining the factor of safety of the slip surface that possesses the lowest factor of safety. The search for the minimum factor of safety based on limit equilibrium methods is a complex optimization problem where there are several local minima. In this paper, a newly developed heuristic global optimization algorithm, called gravitational search algorithm (GSA), is introduced and applied in slope stability analysis. The safety factors of the general slip surfaces are calculated using a concise algorithm of Morgenstern and Price method, which satisfies both force and moment equilibrium. The reliability and efficiency of the proposed algorithm are examined by considering a number of published cases. The results indicate that, the proposed method could provide solutions of high quality, accuracy and efficiency, and could predict the critical failure mechanisms of earth slope and outperforms the other methods in the literatures.

Original languageEnglish
Pages (from-to)5012-5021
Number of pages10
JournalInternational Journal of Physical Sciences
Volume6
Issue number21
Publication statusPublished - 30 Sep 2011

Fingerprint

Slope stability
slopes
safety
slip
equilibrium methods
safety factors
optimization
Safety factor
Global optimization
Earth (planet)
moments

Keywords

  • Gravitational search algorithm
  • Minimum factor of safety
  • Slope stability

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Electronic, Optical and Magnetic Materials

Cite this

Search for critical failure surface in slope stability analysis by gravitational search algorithm. / Khajehzadeh, Mohammad; Taha, Mohd. Raihan; El-Shafie, Ahmed; Eslami, Mahdiyeh.

In: International Journal of Physical Sciences, Vol. 6, No. 21, 30.09.2011, p. 5012-5021.

Research output: Contribution to journalArticle

Khajehzadeh, Mohammad ; Taha, Mohd. Raihan ; El-Shafie, Ahmed ; Eslami, Mahdiyeh. / Search for critical failure surface in slope stability analysis by gravitational search algorithm. In: International Journal of Physical Sciences. 2011 ; Vol. 6, No. 21. pp. 5012-5021.
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