کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6752495 | 1430782 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Use of digital image analysis combined with fractal theory to determine particle morphology and surface texture of quartz sands
ترجمه فارسی عنوان
استفاده از تجزیه و تحلیل تصویر دیجیتال همراه با تئوری فراکتال برای تعیین مورفولوژی ذرات و بافت سطح ماسه کوارتز
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کلمات کلیدی
ماسه های کوارتز، مورفولوژی ذرات و بافت سطح، تجزیه و تحلیل تصویر، نظریه فراکتال،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
The particle morphology and surface texture play a major role in influencing mechanical and hydraulic behaviors of sandy soils. This paper presents the use of digital image analysis combined with fractal theory as a tool to quantify the particle morphology and surface texture of two types of quartz sands widely used in the region of Vitória, EspÃrito Santo, southeast of Brazil. The two investigated sands are sampled from different locations. The purpose of this paper is to present a simple, straightforward, reliable and reproducible methodology that can identify representative sandy soil texture parameters. The test results of the soil samples of the two sands separated by sieving into six size fractions are presented and discussed. The main advantages of the adopted methodology are its simplicity, reliability of the results, and relatively low cost. The results show that sands from the coastal spit (BS) have a greater degree of roundness and a smoother surface texture than river sands (RS). The values obtained in the test are statistically analyzed, and again it is confirmed that the BS sand has a slightly greater degree of sphericity than that of the RS sand. Moreover, the RS sand with rough surface texture has larger specific surface area values than the similar BS sand, which agree with the obtained roughness fractal dimensions. The consistent experimental results demonstrate that image analysis combined with fractal theory is an accurate and efficient method to quantify the differences in particle morphology and surface texture of quartz sands.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Rock Mechanics and Geotechnical Engineering - Volume 9, Issue 6, December 2017, Pages 1131-1139
Journal: Journal of Rock Mechanics and Geotechnical Engineering - Volume 9, Issue 6, December 2017, Pages 1131-1139
نویسندگان
Georgia S. Araujo, Kátia V. Bicalho, Fernando A. Tristão,