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Conference Proceedings

The Fourth Australasian Ground Control in Mining Conference (AusRock)

Conference Proceedings

The Fourth Australasian Ground Control in Mining Conference (AusRock)

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The evolution of seismicity and ground control measures at Ernest Henry Mine

The Ernest Henry Mine (EHM) in Queensland, Australia is a Sub-level Caving operation that started production below the previously mined open pit at a depth of 535m. Current Production mining has progressed to a depth of 730m, with planned production mining to extend down to at least 1000m below surface. The inclined nature and geometry of the orebody combined with geological structures provides for challenging mining conditions. Over several years, Ernest Henry Mine has introduced measures to improve outcomes based on observations, monitoring and data analysis. As mining progresses deeper, EHM will continue to proactively take steps to ensure future outcomes are anticipated and mining can continue safely and uninterrupted. The focus of this paper is on the changes in seismic- and stress-driven behaviour of the rockmass experienced at EHM, the ground control measures implemented, and the anticipated future conditions and controls required. CITATION:Esterhuizen, H, 2018. The evolution of seismicity and ground control measures at Ernest Henry Mine, in
Proceedings The Fourth Australasian Ground Control in Mining Conference (AusRock), pp 20-41 (The Australasian Institute of Mining and Metallurgy: Melbourne).
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  • Published: 2017
  • PDF Size: 4.28 Mb.
  • Unique ID: P201805005

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