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    Back analysis of seismicity from development to open stope extraction at a deep mining operation

    Access Status
    Fulltext not available
    Authors
    Bustos Salgado, Nadia
    Villaescusa, Ernesto
    Talebi, Roo
    Cancino, Andres
    Date
    2023
    Type
    Conference Paper
    
    Metadata
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    Citation
    Bustos Salgado, N. and Villaescusa, E. and Talebi, R. and Cancino, A. 2023. Back analysis of seismicity from development to open stope extraction at a deep mining operation. In: 1er Congreso Chileno Mecanica de Rocas, 22nd Nov 2023, Santiago Chile.
    Source Conference
    1er Congreso Chileno Mecanica de Rocas
    Faculty
    Faculty of Science and Engineering
    School
    WASM: Minerals, Energy and Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/95505
    Collection
    • Curtin Research Publications
    Abstract

    A detailed review of a deep open stope operation, including the sequential construction steps and their related seismicity, has been completed. The seismic response has been analysed using an integrated geotechnical platform called IGD, which allows the geotechnical team to review the rock mass response in real-time. The seismic response has been compared for the entire sequence of three stopes, indicating that the induced stress concentration has mobilised geological structures, including rock mass closer to the access infrastructure, much later than the actual development of those tunnels. This has resulted in an increased seismic hazard in the area. The implications for the ground support are clear and indicate that it must be designed to withstand the damage from the entire stope extraction sequence.

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