کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4921641 505178 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation on the interfacial mechanical behavior of wave-shaped fiber reinforced soil by pullout test
ترجمه فارسی عنوان
بررسی رفتار مکانیکی خاک تقویت شده فیبر شکل موج با استفاده از آزمون کشش
کلمات کلیدی
ژئوسنتتیک، فیبر تقویت شده خاک، رفتار مکانیکی متقابل، شرایط فشرده، استحکام برشی بین فاز پاسخ قطعی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Fiber reinforcement benefit is dominated by the interfacial mechanical behavior between fiber surface and soil matrix. In this study, a new wave-shaped fiber (WF) was proposed as an alternative reinforcement to improve the interfacial mechanical interactions. In order to quantify the interfacial shear strength, a single fiber pullout test device was developed and a series of single fiber pullout tests were carried out on both conventional straight fiber (SF) and WF reinforced soil. Moreover, the effects of compact water content and dry density on the interfacial shear strength were investigated. It is found that the pullout response significantly depends on the morphology of fibers. The pullout curves of SF show typical mono-peak pattern, while those of WF show typical multi-peaks pattern. The maximum interfacial shear strength of WF reinforced soil is much higher than that of SF reinforced soil, indicating that the WF can better enhance the interfacial mechanical interactions and fiber reinforcement benefit. With increasing pullout displacement, the interfacial shear strength at each peak decreases exponentially. The interfacial shear strength of WF reinforced soil significantly depends on compact conditions. It increases linearly with decreasing water content, while exponentially with increasing dry density.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geotextiles and Geomembranes - Volume 44, Issue 6, December 2016, Pages 872-883
نویسندگان
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