FRICTION ROCK STABILIZER WITH POINT ANCHOR

摘要

A friction rock stabilizer (10) includes an elongated metal tube (16) having and interior (18) and an exterior surface (20) with a distal end (22) and a proximal end (24). The distal end (22) is tapered and a flange (26) is positioned adjacent the proximal end (24). The tube (16) further includes a slit (28) that runs substantially the entire length thereof. The tube (16) is constructed so as to be capable of being positioned within a bore (12) formed in the wall (14) of a mine. An Internal sleeve (30) is located adjacent the distal end (22) of the tube (16). A tapered expander (34) is also located within the interior of the tube (16) adjacent the distal end (22) and is actuatable from the proximal end (24) of the tube (16) after the point anchor is installed in a bore. The tapered expander (34) expands the distal end (22) of the tube (16) to firmly anchor the stabilizer in the bore.