Thrust bolting: roof bolt support apparatus

Details Thrust bolting: roof bolt support apparatus Thrust bolting: roof bolt support apparatus

1991-07-22

1992-07-07

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

405288, 4052596, E21D 2002

Patent

active

051277697

ABSTRACT:
A method of installing a tensioned roof bolt in a borehole of a rock formation without the aid of a mechanical anchoring device or threaded tensioning threads by applying thrust to the bolt (19) as the bonding material (7') is curing to compress the strata (3) surrounding the borehole (1), and then relieving the thrust when the bonding material (7') has cured.

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