Blasting preparation for selective mining of complex structured ore deposition

Innovations and Prospects of Development of Mining Machinery and Electrical Engineering

矿业工程;电工学

Marinin, M.A.^1 ; Dolzhikov, V.V.^1

Saint-Petersburg Mining University, 21 Line, 2, Saint Petersburg

199106, Russia^1

关键词: Blasting technology;    Open pit;    Ore bodies;    Ore deposition;    Ore mining;    Technological feature;    Technological scheme;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/87/5/052016/pdf
DOI  :  10.1088/1755-1315/87/5/052016

来源: IOP

【 摘 要 】

Technological features of ore mining in the open pit development for processing of complex structured ore deposit of steeply falling occurrence have been considered. The technological schemes of ore bodies mining under different conditions of occurrence, consistency and capacity have been considered and offered in the paper. These technologies permit to reduce losses and dilution, but to increase the completeness and quality of mined ore. A method of subsequent selective excavation of ore bodies has been proposed. The method is based on the complex use of buffer-blasting technology for the muck mass and the principle of trim blasting at ore-rock junctions.