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Keywords: Hedgehog
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Proceedings Papers

Paper presented at the 6th ISRM Congress, August 30–September 3, 1987
Paper Number: ISRM-6CONGRESS-1987-197
... and "slot stopes" and fast stoping from opening to backfilling. The basic idea in cable bolt pre-reinforcement is to help natural rock arching around stopes and thus prevent caving. Forty km of cable bolting is done annually mainly by a mechanized jumbo, Robolt H 690–5. "Hedgehog" bolting done from sublevel...

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