کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
274100 505191 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Force equilibrium-based finite displacement analyses for reinforced slopes: Formulation and verification
ترجمه فارسی عنوان
تحلیلی جابجایی محدود بر پایه تعادلی برای شیب های تقویت شده: فرمول بندی و تایید
کلمات کلیدی
جابجایی شیب، پایداری شیب، شیب تقویت شده، تعادل نیروی، مدل هیپربولیک، بکش بیرون، نیروی لرزه ای شبه استاتیک
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی

Formulation and verification for a force equilibrium-based finite displacement method (FFDM) using test results of reinforced model slopes subjected to increasing pseudo-static seismic forces are reported. The FFDM requires, in addition to force equilibrium for a sliced potential failure mass, a hyperbolic shear stress–displacement constitutive law for the backfill soils, a hyperbolic pull-out force–displacement constitutive law for the reinforcement, and a displacement compatibility requirement for adjacent soil slices. As a result, the mobilized reinforcement force is an analytical output, rather than an empiricism-based input as required in conventional limit equilibrium analyses. Analytical results from the FFDM also indicated that a brittle failure is associated with the lightly reinforced failure surface; a ductile failure is associated with the heavily reinforced failure surface, regardless of the extensibility of reinforcement investigated in the present study. Good agreements between the measured and the computed slope displacements and reinforcement forces in response to increases in pseudo-static seismic forces suggest that the FFDM can be used as an analytical tool for evaluating displacements of reinforced slopes subjected to pseudo-static seismic loads.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geotextiles and Geomembranes - Volume 42, Issue 4, August 2014, Pages 394–404
نویسندگان
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