Anchor with grout jacket
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United States of America Patent
Stats
-
Mar 20, 2012
Grant Date -
Jan 7, 2010
app pub date -
Jun 3, 2009
filing date -
Jun 3, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An anchor 1 for consolidating non-cohesive rock layers or for connecting them to solid rock 2 primarily has the necessary components for realising a stressed or expansion anchor. Furthermore, when a conventional domed plate 10 is used, which reliably transmits the necessary stress forces, it is possible additionally to bond the anchor bar 4 in the drill hole 3 after stressing. To this end, the anchor bar 4 is either constructed with a connecting tube 22 with distributor head 24 or the sheathing tube 11 comprises a top tube 50, these both fulfilling the task of conveying the grout bonding material 12 reliably from the drill hole mouth end of the anchor bar 4 to the rock end 5A and then diverting it there and returning it to the drill hole mouth, so ensuring complete fixing and sheathing of the anchor bar 4 in the drill hole 3.
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