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Conference Proceedings

Third Large Open Pit Mining Conference, Mackay, August 1992

Conference Proceedings

Third Large Open Pit Mining Conference, Mackay, August 1992

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Investigation into Cable Bolt Corrosion at Mt Whaleback Mine, Newman, Western Australia

Cable bolts have been used extensively in the development of the footwall of the Mt Whaleback Mine as a part of the ground improvement program since 1986. High tensile seven wire stress relieved steel strand similar to that used in pre-stressed concrete and grouted in place with sulphate resistant cement have been employed for rock-mass reinforcement.
Most of the footwall is developed in Mt McRae Shale which contains a 20 m thick pyritic shale layer 14 m below the ore/waste contact. Due to extensive folding of the footwall rocks, the pyritic shale layer regularly occurs on, or close to the pit slope. Rain water run-off seeping through pyritic shale becomes acidic to the extent where its pH value can be as low as 1.5.
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  • Investigation into Cable Bolt Corrosion at Mt Whaleback Mine, Newman, Western Australia
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  • Published: 1992
  • PDF Size: 0.74 Mb.
  • Unique ID: P199208033

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