Method and apparatus for load testing a pile
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United States of America Patent
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Aug 27, 2013
Grant Date -
Sep 8, 2011
app pub date -
Feb 22, 2011
filing date -
Feb 22, 2010
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Abstract
Embodiments pertain to a bi-directional testing method and apparatus for use with a pile. One embodiment utilizes a helical pile central shaft divided into two sections. An expandable bi-directional testing apparatus that includes a sacrificial hydraulic jack, such as, for example, an Osterberg Cell®, that can be installed within the central shaft between the two sections. One or more tell tale rods can be attached to the bi-directional testing apparatus. During testing, expansion of the Osterberg Cell® causes the bi-directional testing apparatus to expand, which can result in movement of the one or more tell tale rods. The movement of the tell tale rods can be correlated to the force exerted by the Osterberg Cell® and provide information regarding the status load bearing capacity of the helical pile.
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