This guideline provides practical guidance for the interpretation of nondestructive testing (NDT) of the integrity of augered cast-in-place (ACIP) and drilled displacement (DD) piles. Every NDT method has specific associated capabilities and limitations, and ACIP and DD piles have unique properties that must be considered when using a specific NDT method for a project. For successful interpretation, it is essential that the test results not be utilized alone, but in conjunction with all the available information on pile installation, as well as consideration of the subsurface conditions, past experiences and sound engineering judgment. This guideline supplements DFI’s two primary publications on ACIP piles: Augered Cast-in-Place Pile Manual (2016) and the Inspector’s Guide for Augered Cast-in-Place Piles (2010).
This guideline was developed to provide 1) more detailed explanations of the various test methods available, 2) guidance on interpretation of the results, and 3) some typical examples of the data and interpretation.
Edited by: Mike Moran, Chair and Editor; Tracy Brettmann, Principal Author; Bernard Hertlein, Matthew Meyer, Bria Whitmire, Co-Authors
Sponsored by: 2011 Augered Cast-In-Place Pile Committee