Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1994-12-30
2000-03-21
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
4052595, 405288, 4052596, 411 8, E21D 2000, E02D 302
Patent
active
060395095
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. The present invention also pertains to a drive tool for driving a metal cable having drive ferrules disposed in proximity to either end of the cable into a bore hole containing a resin cartridge. The tool is constructed of a metal bar, a portion of which has a u-shaped cross section such that the drive tool can bear against the drive ferrule for driving the cable into the bore hole, yet is removable from the cable after the cable has been positioned in the bore hole. The present invention pertains to a method of supporting rock in a mine comprising the steps of drilling a first bore hole and a second bore hole into the rock.
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F. M. Locotos Equipment & Design Co.
Schwartz Ansel M.
Taylor Dennis L.
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