DFI Committee Project Fund

The DFI Board of Trustees established the DFI Committee Project Fund in 2011 to fund DFI Technical Committee projects that advance the state of practice and understanding of deep foundations and produce a usable deliverable. The fund has generated great interest, discussion and activity in the committees. Funding has supported projects proposed by 14 technical committees, and deliverables include laboratory/field testing, installation/demonstration programs, analytical tools, design guides, journal articles, project reports, databases and surveys. All projects involved significant in-kind contributions or joint funding with allied associations, furthering DFI's industry-wide collaborative efforts.

Proposals are selected based on the following criteria:

Please see the current Request for Proposals here. All proposals must be submitted through a technical committee for consideration by the Review Committee. The deadline for proposal submissions is December 3. Please contact Mary Ellen Large, P.E., D.GE, DFI director of technical activities, with questions.

Published Projects

CommitteeProjectDFI FundingAvailable
Augered Cast-in-Place Pile Review and analysis of available pile design information, load testing results and associated pile construction costs to assess validity of acceptance criteria in the building codes. $17,000 DFI Journal, Volume 8, Issue 1, April 2014
Drilled Shaft International technical working group to define best practices in North America and Europe for design, construction, contracting, QC/QA and innovations. $10,000 DFI Journal, Volume 10, Issue 2, December 2016.
Driven Pile Update to the Concrete Reinforcing Steel Institute (CRSI) Design Guide for Pile Caps. $15,000 Available for purchase through DFI publications webpage
Ground Improvement Survey and synthesis of liquefaction mitigation practices including selection and implementation of ground improvement techniques. $15,000 DFI Journal, Volume 7, Issue 1, August 2013
Helical Piles and Tiebacks Literature review and practitioner survey on design and construction practices for helical piles and tiebacks. $24,000 DFI Journal, Volume 9, Issue 1, April 2015
Landslides/ Slope Stabilization Report on update to strain wedge model technique used for analyzing slopes stabilized with one row of piles. $13,800 Project report available through committee web page
Marine Foundations Study of factors that influence vibrodriveability, pile behavior and axial and lateral capacities of vibratory and impact driven piles. $28,000 COMPARISON OF IMPACT VERSUS VIBRATORY DRIVEN PILES: With a focus on soil-structure interaction
Seismic and Lateral Loads and Drilled Shafts Literature review and development of online database of previous large scale pile experiments. $30,000 www.findapile.com
Additional load test data being added as Phase 2 work
Sustainability DFI Carbon Calculator $45,000 Carbon Calculator available through committee web page
Anchored Earth Retention Analysis of anchor load test data to determine potential limitations of 80% anchor unbonded length criterion. $26,400 Project report available through committee web page
Anchored Earth Retention Website to provide guidance for developing standards and specifications for tiebacks and soil nailing in Peru. $500 www.sistemasanclados.org

Projects in Progress

CommitteeProjectDFI Funding
ACIP Piles Instrumented and monitored full scale compression, tension and lateral load tests on ACIP Piles. $30,000
ACIP Piles Literature study, fabrication of small scale drilled displacement pile tool, small scale testing and evaluation of data. $26,100
DFI of India Implementation of CFA/ACIP Pile technology in India including demonstration program. $30,000
Drilled Shafts Investigate shear amplification at soil-rock interface in rock socketed drilled shafts. $25,000
Drilled Shafts Joint project with European Federation of Foundation Contractors (EFFC) to improve tremie concrete practices for deep foundations. $30,000
Landslides/ Slope Stabilization Researchers will compare limit equilibrium and advanced numerical methods for slopes reinforced with stabilizing piles. $13,500
Landslides and Slope Stabilization and Anchored Earth Retention Evaluate probabilistic stability analysis to evaluate how factoring structural resistance affects system reliability and develop consensus guidance for appropriate consideration of structural resistance for slope stabilization. $29,650
Helical Piles and Tiebacks Analyzing results of large scale shake table tests and developing guidance for design of helical piles under seismic loading conditions. $20,000
Helical Piles and Tiebacks, Driven Piles, and Seismic and Lateral Loads Small scale shake table testing and analyses to validate large scale shake table tests conducted through Helical Seismic Research Project. $20,000
Landslides/ Slope Stabilization Develop a simplified approach to the analysis of lateral loads on A-Walls. $29,910
Micropiles Literature review and practitioner survey on state of practice for design and construction and research needs for reticulated micropile network info. $15,300
Micropiles Proposed method for design of bonded connections of micropiles to existing footings. $29,500
Seismic and Lateral Loads Workshop on DFI's Seismic and Lateral Load Testing and Design Guidelines. $23,000
Seismic and Lateral Loads Minimum required length for lateral stability of rock socketed pile shafts to develop a simple approach to address brittle response of rock mass subjected to lateral loads. $19,577
Seismic and Lateral Loads Develop revised procedures for design of inelastic behavior of bridge pile foundations under combined liquefaction-induced lateral spreading and superstructure inertia. $30,000
Slurry Wall Consensus guidelines for design and detailing of reinforced concrete diaphragm walls used as permanent basement walls in regions of high seismicity. $20,000
Soil Mixing Laboratory study of strength and deformation properties of soil-cement mixtures and appropriate laboratory procedures. $29,940