کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
254824 503330 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rotational–translational mechanism for the upper bound stability analysis of slopes with weak interlayer
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Rotational–translational mechanism for the upper bound stability analysis of slopes with weak interlayer
چکیده انگلیسی

The presence of a weak interlayer has usually an adverse effect on the slope stability. However, the rotational failure mechanism in the conventional upper bound limit analysis cannot rationally describe the sliding of the failure mass along the weak interlayer. Therefore, a new failure mechanism was proposed in this study to evaluate the stability of slopes with weak interlayers using the upper bound limit analysis and the associated factor of safety was determined by the shear strength reduction technique. The new failure mechanism is comprised of rigid blocks undergoing rotational or translational movements, instead of the rotational movement in the conventional failure mechanism. It has also been extended to the stability analysis of slopes in presence of stabilizing piles and pore water pressures. Case studies were carried out on actual slopes with weak interlayers. The proposed rotational–translational failure mechanism was verified by the shear strength reduction finite element method (SSRFEM). Comparisons demonstrate the reliability of limit analysis method with the proposed rotational–translational failure mechanism for slopes with weak interlayers and therefore it can be used as a simple evaluation method for the engineering design.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers and Geotechnics - Volume 53, September 2013, Pages 133–141
نویسندگان
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