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Rock mechanics aspects of sequential grid miningApplegate, John Daniel January 1991 (has links)
A project report submitted to the Faculty of Engineering,
University, of the Witwatersrand, Johannesburg, in partial
fulfilment of the requirements for the degree of Master of
Science in Engineering
Johannesburg, 1991 / As mining proceeds deeper on Elandsrand Gold Mine scattered mining will no longer be viable due to the excessive stress levels which would occur during mining of the final remnants between raises. Longwall mining with strike stabilizing pillars would eliminate this need for remnant mining. However, since the Ventersdorp contact Reef on Elandsrand has a relatively large number of faults and dykes and highly variable grade, longwall mining would result in a excessive amount of off-reef mining and mining of unpayable reef. / GR 2017
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Innovations in gold extractionDavidson, Raymond John January 1993 (has links)
The thesis takes the form of a collection of publications and patents concerning gold extraction which were presented over a period of 18 years while employed at the Anglo American Research Laboratories.
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New models for borehole valuation of new mining operations and routine valuation of ore reserve blocksAssibey-Bonsu, Winfred January 2016 (has links)
This thesis proposes some new valuation models and procedures for
global and local ore reserve estimation.
To obtain efficient grade and tonnage estimates for global borehole
valuations of new gold mining properties, the appropriate spatial and
distributional models for the mineralisation are absolutely essential. [Abbreviated Abstract. Open document to view full version] / GR 2016
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