Drilling and blasting research at the Noranda Technology Centre

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Mots clés : Blasting;Drilling;Noranda Technology Centre;Research
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Sommaire: Mining with blast holes drilled upwards may be done to recover sill pillars, or for economic reasons when the distance between the levels is relatively large. If the rock is sufficiently competent to accommodate large stope size, the distance between sublevels could be increased to as much as drilling accuracy allows. The same drill drift can be used for the drilling of both down holes and up holes. In the case of down holes, the initial opening of the stope (drop raise) is not as much a...
Publication: CIM Bulletin
Auteur(s): Q. Liu, H. Tran
Mots clés: Drilling, Blasting, Slot drilling, Inverse drop raises.
Numéro: 1039
Volume: 93
Année: 2000
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