کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5020248 1468677 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Confirmation of the upside-down drop shape theory in gravity flow and development of a new empirical equation to calculate the shape
ترجمه فارسی عنوان
تأیید تئوری شکل قطره به عقب در جریان گرانش و توسعه یک معادله تجربی جدید برای محاسبه شکل
کلمات کلیدی
روش استخراج استخراج، جریان گرانش آزمایش مدل تئوری شکل قطره به جلو، معادله تجربی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Understanding the flow rules of caved ore and rock is the foundation for efficiently applying the caving mining method, and studying the change trends in both extraction zone (EZ) and movement zone (MZ) is the basis for researching these rules and for optimizing structural parameters. Ellipsoid draw theory is one of the traditional theories for the shapes of the extraction zone and the movement zone, which has played an important role in investigating the draw problems in caving mining method for a very long time. The isolated draw tests conducted in this study confirmed the upside-down drop shape theory's prediction that the EZ's shape has obvious longitudinal asymmetry, and is not a standard ellipsoid. The MZ's shape was further studied according to model experiments conducted by Castro, resulting in the fact that the MZ's shape is also the upside down drop shape. On this basis, a new way was proposed to investigate the extraction zone and movement zone shapes and their change trends, and then new empirical equations were deduced for calculation of their shapes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Rock Mechanics and Mining Sciences - Volume 92, February 2017, Pages 91-98
نویسندگان
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