Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1134/S1062739121020058

Ключевые слова: blast, blasthole, chamber, drilling-and-blasting, explosive charge, fragmentation, grain-size composition, oversize/undersize, rock fracture, statistical processing

Аннотация: Abstract: The blasting experience in Zapolyarny Mine is described, and the actual oversized/undersized fragmentation of blasting from haulage drift is presented. The drilling-and-blasting pattern parameters provide insufficient fragmentation quality, which elevates the blasting cost and reduces its efficiency. It is shown that the actual oversized/undersized fragmentation agrees with the Kuz–Ram fragmentation model. This allows adjusting the calculation parameters of uniformity index for the prediction and optimization of grain-size composition in broken muck. Possible causes of oversized/undersized fragmentation are discussed. © 2021, Pleiades Publishing, Ltd.

Журнал: Journal of Mining Science

Выпуск журнала: Vol. 57, Is. 2

Номера страниц: 210-219

ISSN журнала: 10627391

Издатель: Pleiades journals

• Vokhmin S.A. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Kytnianov A.A. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Erlykov G.P. (Mayak Mine, NorNickels Polar Div, Norilsk 663333, Russia)
• Shevnina E.V (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Kurchin G.S. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Kirsanov A.K. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)

• Scopus
• Web of Science Core Collection