1 Progress on implementation of drill jigs at Impala Investor visit 28 October 2005 2 Factors impacting team productivity • Older shafts with high team efficiencies being replaced by new deep level shafts • Distance (horizontal) from barrel affecting face time and thus mining cycles (affects blast frequency) • Traveling time down decline affecting face time (blast frequency affected) • White area mining (20% of total centares)
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Progress on implementation of drill jigs at Impala
Investor visit28 October 2005
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Factors impacting team productivity
• Older shafts with high team efficiencies being replaced by new deep level shafts
• Distance (horizontal) from barrel affecting face time and thus mining cycles (affects blast frequency)
• Traveling time down decline affecting face time (blast frequency affected)
• White area mining (20% of total centares)
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Technology intervention
• Drill-jigs (DDT) technology on the Merensky horizon
• Including in-stope bolting as a support system
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Potential DDT benefits
• Primary benefits• Safety
• Remove rockdrill operators from danger area• Permanent support close to face• Reduction in number of FOGs