Friction rock stabilizers

Details Friction rock stabilizers Friction rock stabilizers

1975-10-03

1977-03-22

Taylor, Dennis L.

85 83, E21D 2100, E21D 2000

Patent

active

040129136

ABSTRACT:
Friction rock stabilizers for anchoring a structure such as a roof or side wall of a mine shaft or other underground opening, comprising a generally annular body having longitudinally 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 installation, the resilience of the body causes the body outer circumference to anchor by frictional engagement with the surrounding wall of the bore.

REFERENCES:
patent: 2754716 (1956-07-01), Bourns
patent: 3227030 (1966-01-01), Preziosi et al.
patent: 3557402 (1971-01-01), Koehl
patent: 3630261 (1971-12-01), Gley
patent: 3913444 (1975-10-01), Otte
patent: 3922867 (1975-12-01), Scott

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