کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10132094 | 1645552 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Monotonic and cyclic simple shear response of gravel-sand mixtures
ترجمه فارسی عنوان
واکنش برشی ساده و چرخه ای از مخلوط شن و ماسه شن و ماسه
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کلمات کلیدی
برش سیکلی ساده، خاکهای خاکستری، سرعت موج برشی، تبدیل به مایع، شن و ماسه مخلوط،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Understanding the factors that affect the monotonic and cyclic response of gravelly soils during earthquake events is critical to infrastructure design. In this study a large-size Cyclic Simple Shear (CSS) device was utilized to perform monotonic and cyclic shear tests on mixtures of either subrounded 9â¯mm Pea Gravel or angular 8â¯mm Crushed Limestone (CLS8) with subrounded Ottawa C109 sand. Tests were performed in constant volume conditions and shear wave velocity was measured for each specimen. Monotonic and cyclic test results at Dr =â¯47% show that there is an optimum mixture percentage that results in the greatest shear strength and resistance to liquefaction (40% Sand for Pea Gravel Mixtures and 60% Sand for CLS8 Mixtures). The effects of particle angularity, cyclic stress ratio, and initial vertical stress on monotonic and cyclic response of loose and dense gravel mixtures were investigated and are presented. Comparison of the results from the cyclic simple shear tests with existing liquefaction triggering charts suggests the need for improved charts for gravelly soil liquefaction evaluation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Dynamics and Earthquake Engineering - Volume 115, December 2018, Pages 291-304
Journal: Soil Dynamics and Earthquake Engineering - Volume 115, December 2018, Pages 291-304
نویسندگان
Jonathan F. Hubler, Adda Athanasopoulos-Zekkos, Dimitrios Zekkos,