E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
85/31
E21D 20/00 (2006.01) E21D 21/00 (2006.01)
Patent
CA 1126058
9026-IE-SE A FRICTION ROCK STABILIZER AND METHOD FOR INSERTION THEREOF IN AN EARTH STRUCTURE BORE Abstract of the Disclosure The stabilizer, according to a preferred embodiment thereof, comprises a generally tubular body which is axially slit, according to the prior art. According to the invention, the surfaces of the body immediately adjacent to the slit nave ribs formed thereon which define bearing surfaces for clamping together, to draw the surfaces together, closing the slit, and thereby contract the stabilizer to facilitate its insertion into an undersized bore. The novel method, then, comprises contracting an axially slit friction rock stabilizer by engaging the aforesaid ribs (formed thereon) with a tool, to contract the stabilizer to a reduced and constrained cross-sectional dimension, inserting the stabilizer into an undersized bore, and releasing it therein, in order that it may engage and stabilize the surface of the bore (of the earth structure).
371890
Ingersoll-Rand Company
Swabey Ogilvy Renault
LandOfFree
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