Helical Piles and Tiebacks
Committee Initiatives
Contents
Completed Committee Project Fund Awards
Industry survey of state of practice for helical piles and tiebacks
Literature review and practitioner survey on design and construction practices for helical piles and tiebacks.
$24,000
Field Testing at the UC San Diego Large Shake Table and the Proposed Instrumented Building Retrofit Joint Venture with Pile Tech of New Zealand
Analyzing results of large scale shake table tests and developing guidance for design of helical piles under seismic loading conditions.
$20,000
Development of Design Recommendations for Helical Pile Anchorages Subjected to Cyclic Load Reversals
Development of Design Recommendations for Helical Pile Anchorages Subjected to Cyclic Load Reversals.
$27,210
Helical Pile Design Training Course
Based on DFI’s Helical Design Guide, this course covers design recommendations, installation and specifications of helical elements.
Initiative currently in progress…
Helical Tradeshow
Showcases high-quality, safe, reliable and cost-effective foundation solutions using helical piles and tiebacks. Structured technical education program, including indoor and outdoor equipment exhibitions, and live installation demonstrations.
Research
- Industry Survey of State of Practice for Helical Piles and Tiebacks
- State of Knowledge in Seismic Behaviour of Helical Piles
- Effects of Detailing on the Behavior of Helical Pile-to-Foundation Connections
- Helical Pile-to-Pile Cap Connections Subjected to Uplift Forces: Improving Future Practice
- Design Recommendations for Helical Pile Anchorages Subjected to Cyclic Load Reversals
- Improving Helical Pile-to-Foundation Connections
Industry Outreach
Young Professionals
Educating the next generations of design professionals about helical deep foundation products. Reach out to a committee member or a DFI representative today to get plugged in to our current young professional or student activity.
Contractors
As we inform the deep foundation industry on the benefits of the use of helical products, one of the most important partners in this effort are the trade contractors who use the products every day. Our committee is constantly seeking new ways get our contractors involved. For more information on how to join our committee reach out to a committee member or DFI today.
Specifications
A series of guideline specifications for helical foundation and earth retention projects.
Compression Applications
Provides practical guidance and model specification language for helical pile foundations acting in compression for new foundation construction, foundation repair, and existing foundation augmentation.
Tension
Provides practical guidance and model performance specification language for helical anchors in earth retention and shoring, transmission tower guy tiedowns, and buoyancy/uplift protection applications.
Helical Soil Nails
In progress…