The rock from a 3 m radius vertical shaft 412,98 m deep is to be dumped...

The rock from a 3 m radius vertical shaft 412,98 m deep is to be dumped on level ground.

The base diameter of the dump is limited to 60 m; the angle of repose of rock = 37°. The ratio of broken to in situ rock = 3:5.

The dump is to be levelled on the top when the shaft is completed.

Calculate:

a) The volume of rock to be dumped.

b) The vertical height of the completed dump.

c) The top area of the dump if the height is 11.513 m.

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Ally Wells answered 10 months ago

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