New Publications
Combined Side and Base Resistance for Rock-Socketed Drilled Shafts – A State of the Art Consensus
DFI Drilled Shaft Committee
The purpose of this document is to present a summary of the recent evidence indicating mobilization of combined side and base resistances at small, compatible displacements that are within the settlement tolerance of most structures in well-designed, constructed and inspected rock sockets.
Published December 13, 2022.
Augered Cast-in-Place Pile Manual, Third Edition with Erratum
DFI Augered Cast-in-Place and Drilled Displacement Piles Committee
This document addresses current trends in ACIP Pile installation and quality control, the use of increased ACIP pile diameters and lengths to provide significantly higher load carrying capacities, and the challenges associated with the use of grout and reinforcement necessary to sustain such higher loading.
Third edition 2016 with 2023 erratum.
Data Management Guide Specification
DFI Information Management Systems Committee
Based on the U.S. Army Corps of Engineers guidance, this document provides generic specification language and commentary for project information management systems including recent technological developments.
Second edition, September 2022.
Committee Project Fund Reports
The following are recently published research reports for projects funded by DFI’s Committee Project Fund.
- Implementation of CFA/ACIP Pile Technology in India – Including Demonstration Program – DFI of India
- Shear Demands of Rock-Socketed Piles Subject to Cyclic Lateral Loading – DFI Drilled Shaft Committee
- Lateral Spreading and Basal Stability of Embankments and MSE Walls Supported on Unreinforced High-Modulus Columns – DFI Ground Improvement and ACIP and DD Piles Committees
- Design Recommendations for Helical Pile Anchorages Subjected to Cyclic Load Reversals – DFI Helical Piles and Tiebacks Committee
- Modified Strong Rock P-Y Curves for Rock-Socketed Pile Shafts – DFI Seismic and Lateral Loads and Drilled Shaft Committees
- Development of Experimental P-Y Curves from Centrifuge Tests for Piles Subjected to Static Loading and Liquefaction-Induced Lateral Spreading – DFI Seismic and Lateral Loads Committee
- Effect of Curing Stresses on the Mechanical Properties of Soil-Cement Mixed Materials – DFI Soil Mixing Committee
- Guidance for Factoring Structural Resistance for Landslide Stabilization and Excavation Support