General Features

• The Post Groutable HI-TEN is a high tensile and shear load capacity strand bolt. It is a cable designed to be installed as a long rock bolt which is capable of being posttensioned at the face, or outbye, to loads of up to 25 tonnes using the DSI Tensioner Unit.
• The Post Groutable HI-TEN Strand Bolt is manufactured from 21 wire strands with a 12mm square, for mixing chemical anchors, welded to one end of the strand and is available in any length up to 10 metres.
• The Post Groutable HI-TEN Strand Bolt has a special collar and segmented wedge, which can sustain collar loads of between 52 and 55 tonnes.
• The Post Groutable HI-TEN Strand Bolt concept allows a longer than seam height bolt to be installed at up to 30° from the vertical at the face, or outbye, to supplement existing strata reinforcement. Compatible domed plates are available to be used with the Post Groutable HI-TEN Strand Bolt.
• The bolt can be post grouted immediately or at any time later using standard grouting equipment.
• Provides very efficient anchorage at the very top end of the bolt using a unique combination of a spiral resin mixer and a bulb. The bulb is always filled with 100% mixed resin.
• Anchorage strength of the resin grouted top end of the bolt exceeds bolt tensile strength in typical rock conditions.
• The Post Groutable HI-TEN Strand Bolt system is patent pending.

Installation Guidelines

• Drill 52-55mm diameter hole for the length of the bolt.
• Insert resin. Each cartridge should be pushed to the back of the hole using a resin inserter.
• Install the Post Groutable HI-TEN Bolt in the same way the standard HI-TEN Bolt is installed, i.e. push and spin into the resin.
• Loosely assemble the plate with a grout hole and the collar and wedges onto the bolt.
• Push grout tube through the grout hole in the plate to the back of the hole.
• Pre-tension the bolt to the required load.
• Pump thixotropic grout.

Standard Lengths & Packaging

• Typical Post Groutable HI-TEN Strand Bolt lengths range from 4100 to 8100mm.
• Collar/wedge assemblies are supplied separately to the bolt.
• Non-standard requirements are available by negotiation.
• 4100 to 8100mm long HI-TEN Strand Bolts are strapped in bundles of 50 and supplied on steel trays.
• Assistance should be sought from DSI’s Technical Service Engineers in selection of the correct HI-TEN Strand Bolt fittings for the application and correct product codes.

Notes

• Only DSI rock bolt components should be used in order to obtain full performance of the bolt system.
• Stiffening tubes to assist in installation are also available.
• DSI's Mining Products Division is Quality Assured to ISO 9001:2000, Registration No.QAC/R61/0315.