کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4927699 | 513333 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of non-plastic fines content on maximum shear modulus of granular materials
ترجمه فارسی عنوان
تاثیر محتوای غلاف پلاستیکی بر حداکثر مدول برشی مواد دانه ای
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Resonant column tests were conducted on clean Hostun sand and Hostun sand mixed with 5%, 10%, 20%, 30% and 40% fines (particle size smaller than 0.075 mm) to assess the influences of void ratio (e), effective confining stress (pâ²) and fines content (fc) on the maximum shear modulus, Gmax. A significant reduction of Gmax was observed with increasing fc. While the Hardin׳s empirical relation was adequate to capture the influence of e and pâ² on Gmax, each sand with an fc has to be considered as separate soil. The micro-CT scans of these sand with fines mixture provided a qualitative observation of the initial skeleton structures of the "fines-in-sand" or "sand-in-fines" of equivalent granular void ratio, e*. Therefore, e was replaced by e* in Hardin׳s relation for clean Huston sand to overcome the effect of fc. The conversion of e to e* requires two parameters: b and m. Four different approaches, including the calibration of b and m, were used to obtain e* and to verify the performance of e* in capturing the effect of fc. The performances of the calibrations, in terms of the root-mean-square-deviation and R2, are discussed. The Gmax of Hostun sand with a range of fc can be predicted with good accuracy using Hardin׳s relation for clean Hostun sand when e is replaced by e*. Then, collected data sets from the literature were also analyzed to validate e* in capturing the effect of fc.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soils and Foundations - Volume 56, Issue 6, December 2016, Pages 973-983
Journal: Soils and Foundations - Volume 56, Issue 6, December 2016, Pages 973-983
نویسندگان
Meisam Goudarzy, Md. Mizanur Rahman, Diethard König, Tom Schanz,