کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6710506 503316 2016 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Explicit formulation of at-rest coefficient and its role in calibrating elasto-plastic models for unsaturated soils
ترجمه فارسی عنوان
فرمول بندی صریح ضریب استراحت و نقش آن در کالیبره کردن مدل های الاستوپلاستیک برای خاک های اشباع نشده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
This paper derives an explicit formulation of the at-rest coefficient for unsaturated soils and develops an optimization approach for simple and objective identification of material parameters in elasto-plastic models for unsaturated soils using the results from suction-controlled oedometer tests. This is achieved by combining a modified state surface approach (MSSA), recently proposed to model the elasto-plastic behavior of unsaturated soils, with the quasi-Newton method to simultaneously calibrate all parameters governing virgin behavior in elasto-plastic models. The Barcelona Basic Model (BBM) is used to demonstrate the application of the proposed explicit formulation and calibration method. Results predicted using obtained parameters are compared with laboratory test results for the same stress paths in order to evaluate the simplicity and objectivity of the proposed method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers and Geotechnics - Volume 71, January 2016, Pages 56-68
نویسندگان
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