Mine roof support apparatus and method

Details Mine roof support apparatus and method Mine roof support apparatus and method

1991-09-25

1995-01-03

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

4053022, E21D 2000

Patent

active

053780876

ABSTRACT:
The present invention pertains to a mining support for supporting rock within a mine. The mining support is constructed of a cable and means for mixing resin in a resin cartridge as the cable is inserted into a bore hole drilled in the rock which the resin cartridge is disposed. In a preferred embodiment, the mixing means is comprised of a helical mixing strand which is fixedly attached to one end of the cable. The mining support can include a drive ferrule, swaged onto the cable, for driving the end of the cable into the bore hole. In a preferred embodiment, the drive ferrule is threaded and there is included a hex nut washer and contact plate for tensioning the cable after the resin has set.

REFERENCES:
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patent: 3509726 (1970-05-01), White
patent: 4265571 (1981-05-01), Scott
patent: 4289427 (1981-09-01), Rolston
patent: 4634318 (1987-01-01), Koumal
patent: 4648753 (1987-03-01), Stephan
patent: 4704053 (1987-11-01), Hipkins et al.
patent: 4750887 (1988-06-01), Simmons
patent: 4798501 (1989-01-01), Spies
patent: 4904122 (1990-02-01), Herbst et al.

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