MARY ELLEN BRUCE LARGE, P.E., D.GE, DIRECTOR OF TECHNICAL ACTIVITIES Technical Activities Update DFI Technical Committees are tackling technical projects, collaborating with other groups, and organizing events that educate and increase awareness of new technologies. Read the reports below and watch this space for the most current updates on COMMITTEE CHAIR MORGAN NESMITH, P.E. Augered Cast-in-Place (ACIP) Pile Committee The Augered Cast-In-Place (ACIP) Pile Committee planned and performed a foundation installation, monitoring, performance and extraction program for ACIP piles in the fall of 2016 at a program site in Okahumpka, Fla. The purpose of the project was to demonstrate a fully monitored installation of instrumented 18 in and 24 in (approximately 450 mm and 600 mm) diameter ACIP piles, including automated monitoring equipment; post- installation thermal integrity profiling; compression, tension and lateral load testing (including monitoring of strain gages embedded along the compression pile shaft); and post-testing extraction of an installed pile for visual inspection. The DFI Committee Project Fund provided initial funding with additional funds and in-kind pledges collected from industry partners. In the summer of 2016, the Florida Department of Transportation (FDOT) joined the program, along with its research partners at the University of South Florida (USF). Program details were finalized in the summer and fall of 2016, and the program was completed in November and December of 2016. The information obtained during the program is available in the report, ACIP Pile Installation, Installation Monitoring, Full-scale Load Testing and Extraction Program, which is available at www.dfi.org under ‘Publications/Project Fund Deliverables’ In addition, USF has produced a report for FDOT with specific focus on the extensive thermal integrity profiling performed during the program. Presentations on both the overall program and the thermal integrity profiling results were presented at SuperPile ’18 in New York City at the end of June. The goal of the program is to advance the development of documentation; installation, monitoring and testing methods; and reporting procedures to allow for both the use of ACIP piles for structural support of bridges and the inclusion of ACIP piles in DOT and other agency specifications in the state of Florida and elsewhere. The ACIP Pile Committee is also assisting FDOT with the development of an ACIP Piles for Bridges section for inclusion in the FDOT Standard Specifications for Road and Bridge Construction. Finally, the following are recognized for their financial or in- kind support of the project: • Argos Concrete • Bauer Foundation Corp. • Berkel and Company Contractors • Cajun Deep Foundations • Farrell Design-Build • Florida Department of Transportation • Goettle • HJ Foundations • Langan Engineering and Environmental Services • Loadtest USA • Malcolm Drilling Company • Moretrench • Nicholson Construction Company • Pile Dynamics • Skyline Steel • Specrete-IP • Terracon Consultants • University of South Florida DEEP FOUNDATIONS • JULY/AUG 2018 • 105 DFI technical activities. Please contact me at [email protected] to get involved. We are always seeking new members, ideas and suggestions…and we always welcome constructive criticism to improve our offerings. TECHNICAL ACTIVITIES
