Reliability analysis of earth slopes using hybrid chaotic particle swarm optimization

M. Khajehzadeh, Mohd. Raihan Taha, A. El-Shafie

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A numerical procedure for reliability analysis of earth slope based on advanced first-order second-moment method is presented, while soil properties and pore water pressure may be considered as random variables. The factor of safety and performance function is formulated utilizing a new approach of the Morgenstern and Price method. To evaluate the minimum reliability index defined by Hasofer and Lind and corresponding critical probabilistic slip surface, a hybrid algorithm combining chaotic particle swarm optimization and harmony search algorithm called CPSOHS is presented. The comparison of the results of the presented method, standard particle swarm optimization, and selected other methods employed in previous studies demonstrates the superior successful functioning of the new method by evaluating lower values of reliability index and factor of safety. Moreover, the presented procedure is applied for sensitivity analysis and the obtained results show the influence of soil strength parameters and probability distribution types of random variables on the reliability index of slopes.

Original languageEnglish
Pages (from-to)1626-1637
Number of pages12
JournalJournal of Central South University of Technology (English Edition)
Volume18
Issue number5
DOIs
Publication statusPublished - Oct 2011

Fingerprint

Reliability analysis
Particle swarm optimization (PSO)
Earth (planet)
Random variables
Soils
Method of moments
Probability distributions
Sensitivity analysis
Water

Keywords

  • Earth slopes
  • Harmony search
  • Particle swarm optimization
  • Reliability analysis
  • Stability assessment

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Reliability analysis of earth slopes using hybrid chaotic particle swarm optimization. / Khajehzadeh, M.; Taha, Mohd. Raihan; El-Shafie, A.

In: Journal of Central South University of Technology (English Edition), Vol. 18, No. 5, 10.2011, p. 1626-1637.

Research output: Contribution to journalArticle

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