With reference to Problem 38, concerning opening width in the A Level, determine a bolting plan that

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With reference to Problem 38, concerning opening width in the A Level, determine a bolting plan that would allow for 27.4 m wide rooms.

(a) Specify, bolt length, safety factor, diameter, steel grade, and spacing.

(b) Also specify the associated pillar size and pillar safety factor with respect to ore strength for the mining plan.

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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 04:14 AM

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With reference to Problem 38, concerning opening width in the A Level, determine a bolting plan that

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Given Problem 38 data rooms 274 m wide Find a Bolting ...View the full answer

Design Analysis in Rock Mechanics

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