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Optimal Slot Raising Methods at George Fisher by krainaoz2011 is a document available to read on EtoBox.

What is Optimal Slot Raising Methods at George Fisher about?

1) The document discusses methods for slot raising at the George Fisher Mine in Australia, specifically comparing a small diameter raiseboring trial to the standard longhole winzing method. 2) A study found that a 1.06m raisebored design could provide a 15% cost saving over winzing due to reduced firing and mucking requirements. 3) However, a long-term analysis determined that purchasing a drilling rig would have a $7 million value over its life, making it more cost-effective than contracted small diamete

Author

krainaoz2011

Language

EN