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    Equipment selection with heterogeneous fleets for multiple-period schedules

    Access Status
    Fulltext not available
    Authors
    Burt, Christina
    Caccetta, Louis
    Welgama, P.
    Fouche, L.
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Burt, C. and Caccetta, L. and Welgama, P. and Fouche, L. 2011. Equipment selection with heterogeneous fleets for multiple-period schedules. Journal of the Operational Research Society. 62 (8): pp. 1498-1509.
    Source Title
    Journal of the Operational Research Society
    DOI
    10.1057/jors.2010.107
    ISSN
    0160-5682
    URI
    http://hdl.handle.net/20.500.11937/42582
    Collection
    • Curtin Research Publications
    Abstract

    In a simple surface mining scenario we consider a mine to have one mining location and dumpsite connected by a truck route. We determine a purchase and salvage policy for trucks and loaders, which minimises the cost of materials handling over a multiple period schedule. This problem becomes large scale when we consider large sets of equipment and long schedules. Pre-existing equipment can lead to heterogeneous fleets; non-uniformity in the operating cost function coupled with compatibility issues also adds to the complexity of the problem. We present an integer programme for this problem, where we introduce a specialised linear constraint set to ensure satisfaction of production requirements while accounting for equipment compatibility. Many aspects of the presented model, such as the consideration of multiple periods and pre-existing equipment, are novel for the mining industry and ensure that the model is both a new and advanced equipment selection tool.

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