Is deep mining more expensive than open cast mining, and if it is why?



  1. 0 Votes

    Open cast mining is basically digging an open hole in the ground, excavated with giant shovels and hauled in giant trucks. Underground mining involves tunnels, which are relatively small, need to be shored up to prevent collapse, require more men and equipment to mine a much smaller area, and are significantly more dangerous.

    Which do you think is more expensive?

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