Method of securing a rock bolt

Details Method of securing a rock bolt Method of securing a rock bolt

1977-08-12

1979-08-28

Shapiro, Jacob

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

227 9, E21D 2100

Patent

active

041659465

ABSTRACT:
When securing a rock bolt in a drilled hole in the rock the bolt having a conical end, is inserted to the desired depth in the hole. A gun, charged with a sleeve, is applied on the outer end of the rock bolt, and the bolt is centered in the gun barrel. The sleeve is shot into the hole at a high speed to be wedged in the gap between the conical end of the bolt and the wall of the hole.

REFERENCES:
patent: 2573880 (1951-11-01), Temple
patent: 2618192 (1952-11-01), Temple
patent: 2813449 (1957-11-01), Barrett
patent: 3311012 (1967-03-01), Williams

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