International Journal of Civil Engineering، جلد ۱۳، شماره ۲، صفحات ۱۳۳-۱۴۵

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عنوان انگلیسی A generalized plasticity constitutive model for sand-gravel mixtures
چکیده انگلیسی مقاله This paper presents a model for prediction of the mechanical behavior of sand-gravel mixtures using generalized plasticity and critical state concepts. Proposed model is based on the difference between critical state lines of sand and sand-gravel mixture in e-Lnp' plane. A generalized plasticity model is considered as the base model for sandy soil. Its state parameter, dilation rate and hardening function are modified to involve the effects of gravel particles on the behavior of mixture. Gravel content is considered as a physical parameter for determination of four new added parameters of the model. Verification of the proposed model performed considering four sets of experiments conducted by different researchers on poorly graded sand-gravel mixtures. According to the results, proposed model provides satisfactory qualitative and quantitative predictions of the behavior of sand-gravel mixture. Stress- strain behavior besides volumetric strains in drained condition and induced pore pressure during undrained loading are satisfactory predicted which indicates the possibility of its application in boundary value problems of geotechnical engineering.
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نویسندگان مقاله مهدی گورانی | mehdi goorani
school of engineering, kharazmi university, tehran, iran


امیر حمیدی | amir hamidi
school of engineering, kharazmi university, tehran, iran



نشانی اینترنتی http://ijce.iust.ac.ir/browse.php?a_code=A-10-499-4&slc_lang=en&sid=en
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/405/article-405-333484.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Soil Mechanics Classic
نوع مقاله منتشر شده Research Paper
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