Determinationof critical failure surface in slope stability analysisusing optimization algorithms (PSO & GA)

Johari, Ali and Sahebkar, Masoud Determinationof critical failure surface in slope stability analysisusing optimization algorithms (PSO & GA). In: The 1st Iranian Conference on Geotechnical Engineering, October 2013, Ardabil, Iran. (Submitted)

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Abstract

The use of limit equilibrium methodsare the common approaches for determining of soil slope stability in geotechnical engineering project. In these methods many researchers tend to find a circular critical failure surface for homogeneous soils, but failure surfaces can be non-circular especially for layered slopes. Finding of critical failure surface of a general soil slope is a difficult problem as the non-convex and multiple minima exist of the safety factor objective function. In this paper simple genetic algorithm and particle swarm optimization methods are employed to find the critical non-circular failure surface.For this purpose the Morgenstern–Price method is used to find the factor of safety. A computer program was coded by MATLAB for searching the minimum factor of safety.The result of a exampleis compared withstress-deformation method using PLAXISsoftware for one example. It shows the determined safety factors are very close to each other for two methods.

Item Type: Conference or Workshop Item (Poster)
Persian Title: -
Persian Abstract: -
Subjects: Divisions > Conferences > The 1st Iranian Conference on Geotechnical Engineering, October 2013
Conferences > The 1st Iranian Conference on Geotechnical Engineering, October 2013
Divisions: Conferences > The 1st Iranian Conference on Geotechnical Engineering, October 2013
Subjects > Conferences > The 1st Iranian Conference on Geotechnical Engineering, October 2013
Date Deposited: 27 Feb 2019 10:46
Last Modified: 27 Feb 2019 10:46
URI: http://repository.uma.ac.ir/id/eprint/5009

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