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raise

mining

Learn about this topic in these articles:

underground mining

  • development workings of an underground mine
    In mining: Vertical openings: shafts and raises

    Raises with diameters of 2 to 5 metres (7 to 16 feet) and lengths up to several hundred metres are often drilled by powerful raise-boring machines. The openings so created may be used as ore passes, waste passes, or ventilation openings. An underground vertical opening…

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  • development workings of an underground mine
    In mining: Cut-and-fill mining

    In this particular design raises are constructed in the fill as mining proceeds upward. These perform various functions, such as manways or ore passes, but an alternative would be to load and haul the rock by LHD to an ore pass located in the footwall.

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