Hardened material supported rock bolt and apparatus for installi

Details Hardened material supported rock bolt and apparatus for installi Hardened material supported rock bolt and apparatus for installi

1987-06-12

1988-08-23

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405269, E21D 2002

Patent

active

047657782

ABSTRACT:
A rock bolt system (10) including a mechanical rock bolt (12) having an interior channel (24) therein and a feeder attachment (14). An anchor may be affixed to the distal end of the rock bolt (12). An aperture (22) extends from the rock bolt (12). The feeder attachment (14), capable of being demountably affixed to the proximal end of the rock bolt (12), supplies hardenable material to the interior channel (24) where it courses through the interior of the rock bolt (12) and exits into the bore hole (16) through the aperture (22). A breather tube (38) extending from the feeder apparatus and into the interior channel (24) permits entrapped air to escape.

REFERENCES:
patent: 4461600 (1984-07-01), Norkus et al.
patent: 4655643 (1987-04-01), Lane et al.
patent: 4655644 (1987-04-01), Lane et al.
patent: 4697960 (1987-10-01), Pelto et al.

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