Mining Field: Passes, Bins, and ChutesArea: Ore Passes (Rule#469)
The flow regime in an ore or waste pass is determined on the basis of the largest particle size of muck (not some average size). This is the fundamental reason for a grizzly at the dump. For example, if a raisebored pass has a diameter of 2m, particles with a diameter of 0.5m will flow freely (4:1 ratio), particles greater than 1m will not flow (2:1 ratio), and sizes in between will produce intermittent hang ups.
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