• (determination of critical failure surface in slope stability analysis using optimization algorithms (pso & ga

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 808
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the use of limit equilibrium methods are 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 example is compared with stress-deformation method using plaxis software for one example. it shows the determined safety factors are very close to each other for two methods.

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