Page 606 - Rock Mechanics For Underground Mining

ANSWERS TO PROBLEMS

3 w p = 38.6 m, say 40 m.
3
4 a N = 8.0m, b N = 1.85 m, E N = 114.2m .
3
a G = 19.05 m, b G = 4.40 m, E G = 1542.1m ;
A ≤ 8.68 m, V ≥ 1.85 m
5 (a) No. Assuming the same eccentricity for the flow and limit ellipsoids,
the height of the limit ellipsoid above the top of the drawpoint is
calculated as 52.4 m.
(b) 24 288 tonne.

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