Grout plug assembly to facilitate grouting during pipe piling placement
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United States of America Patent
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Apr 4, 2017
Grant Date -
Apr 17, 2014
app pub date -
Dec 20, 2013
filing date -
Aug 26, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A grouting assembly receives grout and delivers the grout to a pipe assembly for delivery to underground soil. The grouting assembly may have a drive shaft assembly with a rotary output shaft and a drive socket, a grout tube, a drivable coupler, and a grout plug assembly. The grout plug assembly inserts into the drivable coupler and accepts the grout tube in sealed engagement. The rotary output shaft, grout tube, and grout plug assembly define a conduit that provides an unobstructed flow path for the grout into the pipe assembly. The bottom-most pipe segment of the pipe assembly is designed to receive grout introduced through the pipe assembly so that the grout can be emitted through grout ports during the driving of the pile assembly into soil. The emitted grout forms a grout/soil mixture jacket within the disturbed soil along an exterior of the pipe pile assembly which adds appreciably to the overall stability, and particularly the lateral stability, of the pipe pile column created.
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