کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4743767 1641831 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determining three-dimensional non-spherical critical slip surface in earth slopes using an optimization method
ترجمه فارسی عنوان
تعیین سطح لغزش بحرانی سه بعدی بدون کروی در شیب های زمین با استفاده از روش بهینه سازی
کلمات کلیدی
پایداری دامنه های سه بعدی، سطح لغزش بحرانی، روش بهینه سازی، سطح لغزش غیر کروی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی

Determination of the three-dimensional (3-D) critical slip surface with the minimum factor of safety in earth slopes is one of the important and difficult problems of the optimization methods. Counting the spherical slip surface in the stability analysis of 3-D slopes not only is easy, but also provides for a better understanding, although such slip surfaces cannot be adequately compatible with the actual slip surfaces found in nature. This paper is an attempt to obtain the non-spherical critical slip surface that is more consistent with the actual slip surface in nature by using the Three-Dimensional Alternating Variable Local Gradient (TDAVLG) optimization method. TDAVLG is a new approach in optimization process and it is based on the univariate method. The factor of safety is calculated using the limit equilibrium method. The optimization process can turn the initial slip surface into a non-spherical critical slip surface in all types of slopes with different soil properties. The resulting three-dimensional non-spherical slip surface not only has the minimum factor of safety, but is also the most compatible with respect to the actual slip surface emerging in nature. The non-spherical critical slip surface obtained in the examples proves the efficiency and precision of the suggested method.


► We present a new approach for finding a non-spherical critical slip surface.
► New approach provides three-dimensional critical slip surface close to reality.
► Three-Dimensional Alternating Variable Local Gradient technique is proposed.
► New technique is based on Univariate method.
► Numerical examples indicate the efficiency and accuracy of proposed method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Geology - Volume 153, 8 February 2013, Pages 114–124
نویسندگان
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