Technical Note on ACIP Pile Load Testing

A technical note by Tim that appeared in the December 2010 issue of the DFI Journal has been added to our publications page.  Tim’s note examines some issues related to axial load testing of augered cast-in-place (ACIP) piles, also know as augercast piles or CFA piles, that are not covered in ASTM D 1143/D 1143M-07 Standard Test Methods for Deep Foundations Under Static Axial Compression.  Specifically, load hold time, unload-reload cycles, and fluctuations in incremental load are discussed as they relate to load testing for determining axial capacity or axial load distribution of ACIP piles.  Details of instrumented ACIP pile load testing are also covered.

Siegel, T.C. (2010). “Load Testing and Interpretation of Instrumented Augered Cast-in-Place Piles”, DFI Journal Volume 4, No. 2, December 2010, Deep Foundations Institute, pp69-71.

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“This paper was originally published in DFI’s bi-annual journal, Volume 4, No. 2 in December 2010.  DFI is an international technical association of firms and individuals involved in the deep foundations and related industry. The DFI Journal is a member publication. To join DFI and receive the journal, go to for further information. ”