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    Illumination of contributing parameters of uneven break in narrow vein mine

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    Access Status
    Open access
    Authors
    Jang, Hyong Doo
    Taheri, Sina
    Topal, Erkan
    Kawamura, Youhei
    Date
    2019
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Jang, H.D. and Taheri, S. and Topal, E. and Kawamura, Y. 2019. Illumination of contributing parameters of uneven break in narrow vein mine. In: 28th International Symposium on Mine Planning & Equipment Selection, 2nd Dec 2019, Perth, Australia.
    Source Title
    Proceedings of the 28th International Symposium on Mine Planning and Equipment Selection - MPES 2019
    Source Conference
    28th International Symposium on Mine Planning & Equipment Selection
    DOI
    10.1007/978-3-030-33954-8_52
    Faculty
    Faculty of Science and Engineering
    School
    WASM: Minerals, Energy and Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/77323
    Collection
    • Curtin Research Publications
    Abstract

    One of the principal challenge facing the stope production in underground mining is the overbreak and underbreak (UB: uneven break). Although the UB features a critical economic fallout to the entire mining process, it is much inevitable and usually left as an unpredictable phenomenon in underground mines. The complex mechanism of UB must be examined to minimize the UB phenomenon. In this study, the contribution of ten primary UB causative parameters is scrutinized investigating a published UB prediction ANN model. The inputs (UB causative factors) contributions to the output (percentage of UB) of the ANN model were analyzed using Profile methodology (PM). The results PM revealed the essential importance of geological parameters to UB phenomenon as the calculated contributions of adjusted Q-rate (GAQ) and average horizontal to vertical stress ratio (GSK) are 20.48% and 18.12% respectively. Also, the trends of the other eight UB causative factors were investigated. The findings of this study can be used as a reference in stope design and reconciliation processes to maximize the productivity of the underground mine.

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