Jiang Dong-jun
Abstract
In Nanfen Open-pit Iron Ore Mine,the reasons and positions of occurring of lump and residual root of bench after blasting are analyzed.On this basis,the technical measures such as optimizing blasting parameters,improving structure of loading,application of opposite angle detonation short-delay blasting and collision blasting are recommended.
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In Nanfen Open-pit Iron Ore Mine,the reasons and positions of occurring of lump and residual root of bench after blasting are analyzed.On this basis,the technical measures such as optimizing blasting parameters,improving structure of loading,application of opposite angle detonation short-delay blasting and collision blasting are recommended.
Key concepts: Rock blasting, Detonation, Mining engineering, Open-pit mining, Residual, Explosive material, Drilling and blasting, Geotechnical engineering