My understanding (reinforced by money of mines presenter Maddie ) is normally those cork screw shaped declines are normally offset from the main ore body so not sure there would be much ore in them
Guessing the decline is around 5.0 * 5.5 meters in diameter , often the drives/levels coming off the decline narrow down to about 4 to 4.4 meters in diameter so untracked vehicles TBJs and LHDs /boggers can still navigate them , and would be spaced around 16 M vertically apart .
However here Doubt the drives will narrow down in diameter as the ore body is so thick (creates issues of having to leave support pillars) or maybe some form of block caving even could be an option ?
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