کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7206157 | 1468662 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of cutting forces in granite treated with microwaves on the basis of multiple linear regression analysis
ترجمه فارسی عنوان
ارزیابی نیروهای برشی در گرانیت تحت درمان با میکروویو بر اساس تجزیه رگرسیون خطی چندگانه
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کلمات کلیدی
برش سنگ، اشعه مایکروویو، تجزیه و تحلیل رگرسیون چندگانه، حفاری سخت سنگ، خواص سنگ،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
The current study is focused on the evaluation of cutting forces in granite treated with high-power (24â¯kW) microwave radiation based on a multiple regression analysis. As a result, dependencies of forces acting on a conical cutting pick on the irradiation time (up to 45â¯s), the spacing between cuts and the distance from the treated surface (in depth) were established. The values of obtained correlation coefficients are in the range from 0.90 to 0.98. The analysis of the regression models show that the noticeable reduction in cutting forces for granite used in cutting tests is achieved after its irradiation with a minimum of approximately 34â¯s. Cutting forces increase linearly with increasing distance from the initially irradiated surface (in depth). For an irradiation time of 45â¯s, the influence of cracks induced by microwaves is levelled out at the depth of 32â¯mm, so the treatment of the rock used in cutting tests should be repeated after cutting of some 30â¯mm in order to initiate a new set of cracks for subsequent layers. Representation of cutting test results in form of regression dependencies allow a more detailed analysis of the influence of irradiation and cutting parameters on the cutting forces as well as more convenient re-use of the obtained empirical data by researchers and engineers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Rock Mechanics and Mining Sciences - Volume 107, July 2018, Pages 69-74
Journal: International Journal of Rock Mechanics and Mining Sciences - Volume 107, July 2018, Pages 69-74
نویسندگان
Taras Shepel, Bruno Grafe, Philipp Hartlieb, Carsten Drebenstedt, Artem Malovyk,