DFI Publications Store

DFI offers a wide variety of publications available in different formats: books , PDFs , CD/DVD and flash drives.

Publications are available for purchase from DFI. The prices for different formats are indicated in USD$.
Many publications are also available from OneMine , a web-based document library where DFI members can access and download over 125,000 articles, technical papers and books from organizations all over the world - at no cost. Non-members can purchase and download documents from OneMine for $25 per download.

#ID description nonmember price USD$
#WP-CSL-2019 Terminology and Evaluation Criteria of Crosshole Sonic Logging (CSL) as applied to Deep Foundations
DFI, CSL Task Force of DFI Codes and Standards, Drilled Shafts and Testing and Evaluation Committee Members
PDF, 17 pages, illustrated

Nondestructive testing of drilled shaft foundations via Crosshole Sonic Logging (CSL) is often performed as part of the quality assurance process to assess the soundness of concrete. The intent of CSL testing is to identify irregularities such as soil intrusion, necking, soft bottom, segregation, voids and other defects that could result in poor structural performance of the foundation. Over time, CSL rating criteria based on first arrival time and relative energy have incorrectly evolved to often be the sole means of determining the acceptability of a shaft. Some of these criteria have found their way into regulatory agency specifications, with acceptance values often differing from agency to agency.

The purpose of this document is to review the state of the practice (including experience gained over the past 20 years), propose improved CSL rating criteria and make recommendations for additional assessment, as well as educate the industry on the proper interpretation of CSL test. CSL test results alone should not be the sole means of rejecting or accepting a shaft.

#TM-HLPR-3 Helical Pile Foundation Design Guide, First Edition, 2019
DFI, DFI Helical Piles and Tiebacks Committee, Gary L. Seider, P.E., Chair; Wayne Thompson, P.E., Design Guide Sub-Committee Chair, Editor; and Karen Dawson, P.E., Design Guide, Contributor, Editor
65 pgs, illustrated, PDF

This short, easy-to-follow guide is intended for the preliminary design and selection of helical piles and anchors. The guide covers applications, terminology, advantages and limitations, geotechnical and structural design methods, corrosion protection, load testing, quality control and assurance, and references. This document is intended to be used by engineers and designers with appropriate background knowledge of theoretical soil mechanics and foundation design methods. More detailed design resources are cited.
contents list

#SP-2019 SuperPile 2019 Online Proceedings
DFI, DFI 2019 Technical Committees: Driven Pile, Drilled Shaft, Micropile, ACIP Piles, Helical Piles & Tiebacks, Ground Improvement, Marine Foundations, Testing & Evaluation and Seismic & Lateral Loads
Online Access to Presentation PDFs

For a 12th year, several DFI technical committees combined their industry expertise with ADSC to focus on the latest developments in augered cast-in-place/ drilled displacement piles, drilled shafts, driven piles, ground improvement, helical piles and tiebacks, marine foundations, micropiles, testing and evaluation of foundation systems, and seismic and lateral loads. More than 40 presentations highlighting best practices for project safety from design through construction as well as topics relevant to the Pacific Northwest are included.

#TM-SUPPORTFLUIDS Guide to Support Fluids for Deep Foundations, First Edition
EFFC and DFI, EFFC/DFI Support Fluids Task Group
PDF; 88 pages; illustrated

This guide represents the state of the art of support fluid practice and aims to improve existing design, testing and practices for deep foundation elements bored piles (drilled shafts), barrettes (LBEs) and diaphragm wall panels. It represents the first time that knowledge of good practice from around the world has been brought together into a single authoritative publication. The purpose of this Guide is to present current understanding on bentonite, other clays, polymers and blended systems, including the advantages and limitations, in order to allow informed selection of the optimum technical solution(s) for the conditions on each individual worksite. This Guide does not recommend any particular type of support fluid as each worksite has specific characteristics and requirements.This Guide will assist individuals and corporations involved in the procurement, design, and construction of deep foundations including Owners/Clients, Designers, General Contractors, Academics and Specialist Contractors. It is intended as a practical addition to existing standards, not a substitute. Project Specifications, Standards and Codes should always take precedence. This first edition details accepted industry good practice and will be followed by a second edition based on a comprehensive R&D program which will carry out a series of field research studies. The studies will collect data from active project sites and develop and conduct non-standard tests in order to establish what testing methods have substantial value and to better understand the validity of the compliance values in use. The task group will then produce a second edition of the guide that promises to be the best authority on the use of support fluids in the industry. This is expected to be published in 2021.