Drilling and blasting parameters in sublevel caving in Sheregesh mine

Geodynamics and Stress State of the Earth's Interior 2017

Eremenko, A.A.^1 ; Filippov, V.N.^1 ; Konurin, A.I.^1 ; Khmelinin, A.P.^1 ; Baryshnikov, D.V.^1 ; Khristolyubov, E.A.^2

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia^1

Gornaya Shoria Division, EVRAZRUDA, Russia^2

关键词: Blasting parameters;    Drill hole;    Geotechnology;    Low qualities;    Rock mass;    Sub-level caving;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/134/1/012015/pdf
DOI  :  10.1088/1755-1315/134/1/012015

来源: IOP

【 摘 要 】

The factors that influence geomechanical state of rock mass in Sheregesh Mine are determined. The authors discuss a variant of geotechnology with fan drilling. The drill-hole patterns and drilling-and-blasting parameters are presented. The revealed causes of low-quality fragmentation of rocks include the presence of closed and open fractures at different distances from drill-hole mouths, both in case of rings and fans, as well as the blocking of drill-holes with rocks.