A circular shaft liner is sunk to a depth of 3,750 ft (1,143 m). If the premining

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A circular shaft liner is sunk to a depth of 3,750 ft (1,143 m). If the premining stress field is caused by gravity alone, what unconfined compressive rock strength in psi (MPa) is needed for a rock factor of safety of 3.0?

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Design Analysis in Rock Mechanics

ISBN: 978-0415893398

1st edition

Authors: William G. Pariseau

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Question Posted: Mar 17, 2011 04:10 AM

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A circular shaft liner is sunk to a depth of 3,750 ft (1,143 m). If the premining

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Given and gravity preshaft stress field Find If rock safety factor ...View the full answer

Design Analysis in Rock Mechanics

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