کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6746874 1429442 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Energy efficiency of fibre reinforced soil formation at small element scale: Laboratory and numerical investigation
ترجمه فارسی عنوان
کارایی انرژی تقویت الیاف خاک در مقیاس کوچک: مطالعه آزمایشگاهی و عددی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
This paper explores the aspects related to the energy consumption for the compaction of unreinforced and fibre reinforced samples fabricated in the laboratory. It is well known that, for a fixed soil density, the addition of fibres invariably results in an increased resistance to compaction. However, similar peak strength properties of a dense unreinforced sample can be obtained using looser granular soil matrices mixed with small quantities of fibres. Based on both experimental and discrete element modelling (DEM) procedures, this paper demonstrates that less compaction energy is required for building loose fibre reinforced sand samples than for denser unreinforced sand samples while both samples show similar peak strength properties. Beyond corroborating the macro-scale experimental observations, the result of the DEM analyses provides an insight into the local micro-scale mechanisms governing the fibre-grain interaction. These assessments focus on the evolution of the void ratio distribution, re-arrangement of soil particles, mobilisation of stresses in the fibres, and the evolution of the fibre orientation distribution during the stages of compaction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geotextiles and Geomembranes - Volume 46, Issue 4, August 2018, Pages 497-510
نویسندگان
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