کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8893527 1629188 2018 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of the shearing behaviour of root-permeated soils with a large-scale direct shear apparatus
ترجمه فارسی عنوان
تعیین رفتار برشی خاک های نفوذ ریشه با دستگاه برش مستقیم در مقیاس
کلمات کلیدی
زمین لغزش های کوچک تقویت ریشه، تست برشی مستقیم تمایل،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
Soils with roots or root-like inclusions have often been tested in direct shear to quantify the effects of vegetation on the shear strength of soil, and in turn, the stability of slopes. However, a straightforward evaluation of root reinforcement is challenging due to the complex nature of roots, and the dependency of soil behaviour on many factors. An Inclinable Large-scale Direct Shear Apparatus (ILDSA) was built to study the shearing behaviour of root-permeated soils. Planted specimens, consisting of two different sets of species, were prepared with a moraine, sampled from a recent landslide location, and tested in direct shear subsequent to saturation. Relationships of peak stress ratio with dry weight of roots, maximum dilatancy angle and void ratio were investigated to evaluate the behaviour of root-permeated soil. The combined approach, of taking both presence of roots and dilatant behaviour of soil into consideration, results in a more realistic understanding and quantification of the effects of root reinforcement, at least, for laboratory testing of root-permeated soils.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CATENA - Volume 166, July 2018, Pages 98-113
نویسندگان
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