Method for anchoring a bolt in a rock-like structure

Details Method for anchoring a bolt in a rock-like structure Method for anchoring a bolt in a rock-like structure

1983-07-05

1986-01-14

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405260, E21D 2002

Patent

active

045643156

ABSTRACT:
A method for anchoring a bolt, having a helical channel adjacent the end thereof, in a bore hole in a rock-like structure, especially in anchoring of mine roof bolts, wherein a resin package is first inserted into the bore hole and the bolt is inserted and rotated in a direction opposite the direction of the helical channel to fragment the resin package and mix the resin, and prior to complete hardening of the resin, but after substantial hardening thereof, the bolt is rotated in the opposite direction while the resin completely hardens to anchor the bolt in the rock-like structure.

REFERENCES:
patent: Re25869 (1965-10-01), Schuermann et al.
patent: 3940941 (1976-03-01), Libert et al.
patent: 3973409 (1976-08-01), Asayama
patent: 4162133 (1979-07-01), Clark et al.
patent: 4299515 (1981-11-01), Yates et al.
patent: 4303354 (1981-12-01), McDowell
patent: 4313697 (1982-02-01), Rozanc

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