Friction rock stabilizers

Details Friction rock stabilizers Friction rock stabilizers

F - Mech Eng,Light,Heat,Weapons

16

B

85/31

F16B 33/04 (2006.01) E21D 21/00 (2006.01)

Patent

CA 1061612

FRICTION ROCK STABILIZERS ABSTRACT OF THE DISCLOSURE Friction rock stabilizers for anchoring a structure such as a roof or side wall of a mine shaft or other undergound opening, comprising a generally annular body having longitu- dinally extending edge portions which overlap one another circumferentially of the body and are relatively movable to permit substantial circumferential compression of the body. The body is circumferentially compressed for installation in a bore of diameter substantially smaller than the normal maximum outer diameter of the body whereby, after such instal- lation, the resilience of the body causes the body outer cir- cumference to anchor by frictional engagement with the sur- rounding wall of the bore.

274903

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