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Conference Proceedings

MASSMIN 2000

Conference Proceedings

MASSMIN 2000

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Alternative Access, Mining and Hoisting for Underground Deposits

It is proposed to consider a new access, mining and hoisting system for underground deposits, as an alternative to the commonly used decline or vertical shaft access. The proposed system offers fundamental improvements in gathering of exploration data, reduction of capital expenditure and significant savings in mine operating costs. The cost reductions are achieved through:superior orebody definition by Supersucker winzing on ore prior to the commencement of capital development;considerable reduction of capital development in waste;full capitalisation on all benefits of a raisebored excavation;introduction of rubber tyred skip and rubber tyred Mine Rapid Response Vehicle;introduction of simplified ore handling system and reduction of underground mobile diesel fleet; andintroduction of minimum maintenance shaft concept. The system is applicable to deposits ranging from shallow, low dip angle, narrow vein, high-grade to bigger, massive type vertical mineralisations accessed from the surface, preferably from the bottom of an open pit; it is also suitable as a down dip extension of an existing underground mine. The system is highly conducive to mine automation and emerging trend aimed to increase the ratio of mined metal/mineral to mined waste. It offers substantial reduction in diesel exhaust gas emissions to the mine atmosphere.
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  • Published: 1999
  • PDF Size: 0.076 Mb.
  • Unique ID: P200007100

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