DFI Publications Store

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

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Many publications are also available from OneMine , a web-based document library where DFI members can access and download over 110,000 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$
#TM-POSTGROUT Final Report: Workshop on Quality Assurance for Post-Grouted Drilled Shafts
FHWA, Caltrans, DFI, ADSC, Mary Ellen Bruce Large, P.E., D.GE, DFI Technical Activities Manager
PDF, 45 pgs., illustrated

In partnership with California Department of Transportation (Caltrans), Federal Highway Administration (FHWA), and with support from International Association of Foundation Drilling (ADSC), Deep Foundations Institute (DFI) organized a workshop on quality assurance (QA) practices for acceptance of post-grouted drilled shafts in conjunction with DFI’s 40th Annual Conference on Deep Foundations. The one and a half day workshop was held on October 15-16, 2015 at the Oakland Marriott City Center in Oakland, CA. Post-grouting, in the context of this workshop and report, refers to the alternative design and construction of base-grouted drilled shafts wherein a grout distribution system is installed during construction and used to grout the base under pressure after the drilled shaft concrete has gained adequate strength, resulting in a stiffer axial-compression load-displacement relationship and additional possible ground improvement effects. The primary goals of the workshop were to • Identify and summarize the state of the practice for design, construction, inspection, verification, acceptance criteria, reliability and performance of post-grouting. • Identify gaps and needs in quality assurance that should be addressed for successful use of post-grouting. This report is structured to follow the workshop program: workshop presentations outlined the state of practice and views from owners, engineers and contractors on acceptance of post grouting methods for drilled shafts; and subsequent workshop discussions attended by a small invited group of participants focused on identifying areas of agreement and disagreement on post-grouting best practices, acceptance criteria, design and verification procedures, and inspection requirements. A partial list of attendees of the open and closed sessions is provided as Appendix A, and copies of presentations are included as Appendix B. FHWA and Caltrans are the primary audiences for this report, and its content will be used to develop a roadmap for deploying the findings into policy and practice. The secondary audience is the broader industry group, and the report content will be disseminated in a variety of formats.
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#CPF-2012-DRSH-1 Comparison of Bored Pile/Drilled Shaft Practices between Europe & North America
DFI Drilled Shafts Committee, Alan Macnab, P.Eng, D.GE
PDF, 41 pages (4 Journal Papers)

Four manuscripts describe a comprehensive comparison study between drilled shaft/bored pile practice in Europe and North America (i.e., US and Canada) focusing on the design, construction, contracting, quality control and implementation of recent technologies into the deep foundation industry. The material was presented at conference sessions of the 2014 DFI Annual Conference on Deep Foundations in Atlanta, Georgia, and the 2015 International Foundations Congress and Equipment Expo (IFCEE) in San Antonio, Texas. The presentations, lessons learned and discussions that followed are documented. For the purpose of this study the project team members (i.e. authors of the subsequent papers) were paired by geographic location, i.e., US team members collaborated with European team members to provide a detailed synopsis of the respective study topic. Conclusions drawn from the study were supported by data from a comprehensive project survey conducted on both continents. Brown, Wulleman and Bottiau present a comparison of design practice and recognize that while common trends in the design of deep foundations exist, local practice dictates much of the implementation. In addition thereto, differences in construction techniques (e.g., drilling fluids, reinforcement details, base cleaning) have an impact on the early design stages before construction starts. Marinucci and Jue follow up by investigating differences in construction methodology and note that in Europe, bored pile practice typically follows performance-based methodology and specifications, whereas, in North America, traditional prescriptive-based methodology and specifications are more widely used. In addition differences with respect to casing, usage of drilling fluid and safety requirements dictate the deep foundation construction. Coleman and Tipter explore the contracting methods, document forms, payment methods, contracting provisions, and regional influences in North America and Europe. Given the multitude of contract forms and the involvement of specialty contractors (and the legal responsibilities thereof) the concept of a “team approach” emerged among all comparisons, which would allow for more innovations, reduction of risk and a better methodology of risk sharing among all parties. Hertlein, Verbeek, Fassett and Arnold explore the current state of construction technologies and how some of those techniques are implemented in the quality management (QM) and quality assurance (QA) of drilled shafts. Recent technological developments including their integration in Europe and North America are discussed. In addition a review of QA approaches on both continents is provided along with code standards and guidance documents for each. Selected methodologies within the non-destructive and destructive range are explored and described in further detail. DFI Members can access the article by logging into myDFI and choosing view Journal Issues for the DFI Journal Vol 10, Issue 2, December 2016. Non-Members can Click Here to subscribe.

#TM-CONCRETE2016 EFFC/DFI Best Practice Guide to Tremie Concrete for Deep Foundations
DFI/EFFC, Karsten Beckhause, Chairman joint EFFC/DFI Concrete Task Group
PDF, 52 pages, illustrated

The primary purpose of the Best Practice Guide to Tremie Concrete for Deep Foundations is to present design considerations (concrete rheology, mix design, reinforcement detailing, concrete cover, etc.) and best practices for tremie concrete placement for drilled shafts and diaphragm walls that promote construction of high quality elements. In addition, the guide proposes changes to the methods used commonly to specify concrete mixes and the procedures to test them. It highlights important considerations to minimize risk related to concrete workmanship and quality, and potential conflicts between specialty contractor, designer and supplier.
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#CPF-2013-HLPR-1 Industry Survey of State of Practice for Helical Piles and Tiebacks
DFI Helical Piles and Tiebacks Committee, Drs. S.P. Clemence (Syracuse University) and A.J. Lutenegger (University of Massachusetts Amherst)
PDF, 21 pages, illustrated

The last 25 years have seen exponential growth in the use of helical piles and tiebacks. Helical piles and tiebacks are now considered a standard of practice in the deep foundation industry. With the dramatic growth of this technology and the proliferation of available technical information, a synthesis paper on the current state of the practice was considered a valuable addition to the literature as a way to quantify and summarize the current state-of-practice. Based on the increased interest and global applications of helical foundations, in 2013 the Helical Piles and Tiebacks Committee (HPTC) commissioned a state-of-practice survey of current practices in the use, design and installation of helical piles and tiebacks. The major goals of the survey were to understand the current status of applications of helical piles and tiebacks, their design and construction, quantify perceived needs and to identify future trends. The results for the present survey are very encouraging and have clearly demonstrated that there is a cadre of engineers and manufacturers dedicated to continued improvement and understanding of helical foundation systems. Continued work and education of design engineers, architects, government agencies and owners will ensure continued success and progress. DFI Members can access the article by logging into myDFI and choosing view Journal Issues for the DFI Journal Vol 9, Issue 1, April 2015. Non-Members can Click Here to subscribe

#CPF-2013-SOIL-1 Evaluation of Elongation Criteria and Friction Loss in Ground Anchors
DFI Tiebacks and Soil Nailing Committee, John P. Turner and Benjamin J. Turner, Dan Brown and Associates
PDF, 26 pages, illustrated

This report describes a research project for evaluating the applicability of the widely accepted 80 percent criterion for elongation of ground anchors to anchors with unbonded lengths exceeding 100 feet. This issue is driven by several recent projects involving ground anchors for landslide stabilization in which a significant percentage of the anchors did not meet the criterion that requires measured elongation during proof load testing of at least 80 percent of the theoretical elastic elongation. The projects involved anchor unbonded lengths in the range of 85 to 220 feet, which is outside the range traditionally used in practice although anchors of this length are being used more frequently for landslide stabilization. The principal objective of this research is to address whether the widely accepted criterion of 80- percent elongation is applicable for such applications, and whether other factors affect the ability of anchors to meet the criterion.

#CPF-2012-GRIM-1 Liquefaction Mitigation Synthesis Report
DFI Ground Improvement Committee, Timothy C. Siegel PE, GE, D.GE, Dan Brown and Associates
PDF, 19 pages

This report presents the results of a synthesis on the design and analysis of ground improvement for liquefaction mitigation. The synthesis included an industry survey concerning the practice of ground improvement for liquefaction mitigation. Participation in the survey was solicited by advertisements in several trade magazines and by e-mail for the DFI membership. The survey participants numbered 150. Their professional roles include consulting engineers, specialty contractors, design engineers, government engineers, and academicians. They represent a variety of geographical areas including North/Central/South America, United Kingdom, Middle East, Caribbean, Hawaii, Japan, India, Egypt, France, Australia and New Zealand. Upon completion of the survey, several professionals in the field of liquefaction and ground improvement were interviewed for them to elaborate on the survey results. The interviews are included in the Appendix of this report. Financial report for the project was provided by DFI and Dan Brown and Associates PC. DFI Members can access the article by logging into myDFI and choosing view Journal Issues for the DFI Journal Vol 7, Issue 1, August 2013. Non-Members can Click Here to subscribe

DFI Seismic and Lateral Loads and Drilled Shaft Committees and ADSC Drilled Shaft Committee, Prof. Anne Lemnitzer (Prinicpal Investigator), University of California Irvine

FindAPile.com was created with the purpose of developing a catalogue that documents studies of pile foundations under lateral loading to assist geotechnical engineers, researchers and contractors in their design selection, numerical modeling, literature reviews, research assignments and construction selections. Pile foundations, in particular drilled shafts, are one of the most common foundation systems used in engineering practice. Their versatility in application (off-shore, ports, bridges, buildings) and its resourcefulness in terms of engineering analysis and design (vertical and lateral loading capacities) make it a foundation preference in the United States. The direct use of large scale pile test results has become a design practice (performance based design) to create safer and more economical foundation systems. Large scale pile tests also provide a more realistic understanding of foundation behavior in specific boundary conditions, soil types and enable the engineer to conduct a much more advanced design approach. The mission of the research team is to create a resource for practicing engineers to help guide and advance the pile analyses through an extensive literature review and development of an online database of previous large scale pile experiments. Click Here to go to Find A Pile.com

#MRNE-2009 Deep Marine Foundations - A Perspective on the Design and Construction of Deep Marine Foundations
Marine Foundations Committee 2002-2008, Robert B. Bittner, Committee Chair and Editor; Roderic A. Ellman Jr., Editor
Hard case bound, 390 pgs., color illustrations, 7"x10" section sewn

This assembled volume was compiled from papers presented at past DFI Marine Foundations Specialty Seminars and other relevant papers on deep marine foundations for easy reference for designers, constructors, and suppliers to our industry. Hopefully this volume will assist designers and contractors in optimizing the efficiency of their deep marine foundations. The book contains 40 papers covering a wide range of relevant technical issues relating to the design and construction of deep marine foundations including case histories on major bridges, innovative concepts for temporary cofferdams, design and placement of tremie concrete, design and installation of driven piles and drilled shafts for marine structures, deep marine foundations for offshore wind turbines, plus other miscellaneous topics dealing with deep marine foundations including: dredging, underwater geophysical investigation methods, driven-pile sound attenuation methods, ship-impact protection systems for bridges, corrosion of marine tiebacks, and underwater compaction using vibration.
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#BCG-2005 The Bridge Beyond: A Narrative Biography
Vantage Press, Ben C. Gerwick Jr.
Hard cover, 314 pages, 9.1 x 6.1 x 1.2 inches

This book is a narrative autobiography, written in novel form, with fictitious names. All the events described are true but they have been arranged geographically instead of chronologically. While most of the events actually occurred with the writer being present, a few have been based on first-hand descriptions told to the writer a few days later. The philosophical discussions interspersed through the several chapters have been worded as a fictitious dialogue so as to enable the discussions in the form of questioning rather than dogmatic answers. Hopefully the reader will find answers relevant to his own live and own career.
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