This document was developed by the Helical Piles and Tiebacks Committee to provide practical guidance for the specification of helical anchors. Model performance specification language is provided for the design, construction and testing of helical anchorages for tension applications. Typical tension applications include earth retention and shoring, transmission tower guy tiedowns, and buoyancy/uplift protection. PDF versions are free for members and $25 for nonmembers. The cost for MSWord version is $30 for DFI members and $50 for nonmembers; order by emailing shipping@dfi.org.
Edited by: Gary L. Seider, P.E., Chair and past Chairmen Dr. Samuel Clemence, Robert Hoyt, and Dr. Howard Perko
Sponsored by: DFI Helical Piles and Tiebacks Committee