Friction rock stabilizer and method of forming same, and a method of stabilizing an earth structure

An improved friction stabilizer, for installation in one bore of a plurality of axially aligned bores of diverse, predetermined cross-sectional dimensions which are formed in a structure such as a roof or side wall of a mine shaft or other underground opening, for anchoring said stabilizer in such one bore to stabilize such roof or side wall structure therealong, said stabilizer comprising an elongate body having wall means having an outer surface for frictionally engaging the inner surface of the one structure bore, said body further having a bore-entry leading end and a trailing end and a greatest cross-sectional dimension throughout a principal length thereof, from said trailing end toward said leading end, which is greater than the predetermined dimension of such one bore to require a substantial insertion force to effect installation of said body into said one bore, and said wall further having a thickness, configuration, and material composition which are responsive to forces applied to and along said wall by the inner surface of such one bore, upon said stabilizer having been forceably inserted thereinto, to cause a frictional engagement of said wall with the inner surface of such one bore substantially along the full length thereof;

• wherein the improvement comprises:
• a hard metal threaded fastener made integral with said body for receivably attaching thereto, and suspending therefrom, an elongate pendant for fixing an ancillary article, such as a roof plate, to said pendant to effect remote suspension of said article relative to said body, and to support and stabilize the bored structure.