GROUT INJECTION DEVICE AND METHOD FOR INJECTING GROUT INTO A LONGITUDINAL HOLE
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United States of America Patent
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Issued Date -
Mar 21, 2024
app pub date -
Nov 29, 2021
filing date -
Nov 27, 2020
priority date (Note) -
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Abstract
The present invention concerns a grout injection device (10) and a method for injecting grout into a longitudinal hole, e.g. a borehole. The grout injection device (10) comprises a hose (11) having at least three separate lines (12,13,14) defined in the interior of said hose (11); a packer system (16) arranged at one end (15) of said hose (11), said packer system comprising a chamber (17), said chamber (17) being provided with an inlet opening (18) into which said at least three lines (12,13,24) of said hose (11) lead and one or more discharge openings (22,23,24) for releasing fluid from said chamber (17) into the surrounding of the packer system; and a pump system (30) arranged at the opposite end (28) of said hose (11), configured to inject fluids into said at least three lines (12,13,14) of said hose (11).
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