Installation
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NOTICE Make sure that you fit the Rock anchor spreader in the correct mounting position, as shown here. |
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Variant 1
1) Screw the tie rod (length e.g. 750 mm) flush into the spreader cone of the Rock anchor spreader unit.
2) Push the Rock anchor installation tube over the tie rod and fix it with a Super plate.
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Make a chalk mark on the Rock anchor installation tube to give you an easy-to-see check of the placement depth. |
3) Push the assembled anchoring point all the way into the cleaned drilled hole, i.e. until it reaches the bottom of the hole.
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B Tie rod 15.0 |
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C Rock anchor spreader unit 15.0 |
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D Rock anchor installation tube |
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G Super plate 15.0 |
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H Depth mark made with e.g. chalk |
4) Firmly tighten the Super plate. This forces the segments to spread so that they bite into the walls of the drilled hole.
5) Remove the Super plate and the Rock anchor installation tube.
6) Turn the tie rod with the tie-rod wrench - the spreader segments now press hard into the walls of the drilled hole.
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Required tightening torque: |
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E Tie-rod wrench 15.0/20.0 |
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This job can be made easier by attaching a tube-extension to the tie-rod wrench, e.g. 40 kg for a 1.00 m long extension. |
7) Alternatively, instead of using the tie-rod wrench you can also pre-tension the anchoring point with the tensioning instrument (see the section headed "Carrying out the acceptance test").
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Required load on tie rod: min. 60 kN |
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Variant 2
1) Screw the tie-rod (length e.g. 750 mm) flush into the spreader cone of the Rock anchor spreader unit.
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Make a chalk mark on the tie-rod to give you an easy-to-see check of the placement depth. |
2) Push the assembled anchoring point all the way into the cleaned drilled hole, i.e. until it reaches the bottom of the hole.
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B Tie-rod 15.0 |
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C Rock-anchor spreader unit 15.0 |
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H Depth mark made with e.g. chalk |
3) Push the Rock anchor installation tube over the tie-rod and bang it against the Rock anchor spreader unit several times. This forces the segments to spread so that they bite into the walls of the drilled hole.
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D Rock anchor installation tube |
4) All other steps are the same as from Point 6 of Variant 1 onwards.
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