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sublevel stoping
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sublevel stoping

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Quick Summary

Sublevel stoping is an underground mining method used for steeply dipping, strong ore bodies with regular boundaries. It involves creating openings, or stopes, by excavating ore. In sublevel stoping, shorter blastholes are drilled from intermediate levels (sublevels) situated at regular vertical intervals along the main stope. Blasting is done in successive slices, starting from a vertical slot. As ore is removed from the bottom of the trough, waste material from the hanging wall and above caves in, increasing dilution. This method is suitable when ore and waste can be easily separated.1

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2 Britannica Sources
  1. mining - Blasthole stoping
  2. stoping

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