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Conference Proceedings

Strip Mining 45 Metres and Beyond, Central Queensland

Conference Proceedings

Strip Mining 45 Metres and Beyond, Central Queensland

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Pre-Strip-Mining by Bucket Wheel Excavators

Dragline performance drops considerably when chop-down and double handling of material is needed due to increasing overburden thick- ness or total pit depth. Beyond a certain pit depth the dragline needs support by a pre- stripping system in the upper portion of the overburden. In soft to medium hard ground the bucket wheel excavator can be used for pre- stripping, whereby several methods of material transport are investigated. Conveyor transport around the pit and dumping by stackers is the best solution from the technical point of view. Cross pit transport and dumping by means of a conveying bridge is the method with the lowest costs per volume moved. Cross pit transport by use of a beltwagon with overlong discharge boom is both, poor from the technical point of view and high in overall costs.
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  • Pre-Strip-Mining by Bucket Wheel Excavators
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  • Published: 1981
  • PDF Size: 0.149 Mb.
  • Unique ID: P198105012

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