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Impact of draw velocity profile on footprint definition for primary rock
JOURNAL OF MINING ENGINEERING AND RESEARCH
In block/panel caving mines the footprint geometry and the undercut level height are key planning elements that have a bearing on the project final value. Selection of these parameters obviously depends on the economic objective, but it is also strongly influenced by rock mass characteristics that define column extraction capacity from draw points. This paper presents a simple methodology that allows defining the footprint and the best height of draw (BHOD) based on column extractiondoi:10.35624/jminer2020.01.04 fatcat:ap3wrbpgjnhq3k6v5pq3ur5g24