A new innovation in rock support-Friction Rock Stabilizers

CIM Bulletin, Vol. 73, No. 814, 1980
JAMES J. SCOTT, Professor of Mining, Missouri School of Mines, University of Missouri-Rolla, and, President, Scott Mine Technical Services, Rolla, Missouri
Abstract In the two years since their introduction, Friction Rock Stabilizers have replaced 40 per cent of the previously used fixtures in the metal and non-metal mines in the United States. The Friction Rock Stabilizer, or "Split Set", is a mechanical rock stabilizing system which uses friction to prevent rock movement. The Split Set is a tapered, rolled, steel tube that is slotted along its length. As it is driven into a drilled hole smaller than its diameter, it compresses, pre-loading the surrounding rock. This paper discusses the uses and acceptance of the friction rock stabilizer in mines in the United States.
Keywords: Underground mining, Rock mechanics, Roof support, Friction Rock Stabilizers, Split Sets, Anchorage tests.
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