DFI Technical Committee Chairs Augered Cast-in-Place Pile Morgan NeSmith, P.E. Berkel and Company Contractors Codes and Standards Daniel Stevenson, P.E. Berkel and Company Contractors Deep Foundations for Landslides/Slope Stabilization Chris Ramsey, P.E. Amec Foster Wheeler Environmental & Infrastructure Drilled Shaft Paul Axtell, P.E., D.GE Dan Brown and Associates Driven Pile Ben Vance, P.E. Strata Ground Improvement Tanner Blackburn, Ph.D., P.E. Hayward Baker Helical Piles and Tiebacks Gary Seider, P.E. Hubbell Power Systems/Chance Manufacturers, Suppliers and Service Providers Mark Bryant, EIT MacLean Power Systems Civil Division Marine Foundations Rick Ellman, P.E. Mueser Rutledge Consulting Engineers Micropile Steve Davidow, P.E., S.E. Quanta Subsurface Seismic and Lateral Loads Kwabena Ofori-Awuah, P.E. KCI Technologies Slurry Wall Giovanni Bonita, Ph.D., P.E., P.G. GEI Consultants Soil Mixing David Miller, P.E. ADM Consulting Subsurface Characterization for Deep Foundations Victor Donald, P.E. Terracon Sustainability Carlos Englert, P.E. Terracon Testing and Evaluation Gerald Verbeek Allnamics Pile Testing Experts Tiebacks and Soil Nailing Ed Laczynski, P.E. G.A.& F.C. Wagman Women in Deep Foundations Helen Robinson, P.E. GEI Consultants Working Group Chairs Electric Power Systems Foundations Peter Kandaris, P.E. DiGioia Gray & Associates Steve Davidow. P.E., S.E. Quanta Subsurface Energy Foundations Tony Amis GI Energy Guney Olgun, Ph.D. Virginia Tech Seepage Control Michael Kynett, P.E. U.S. Army Corps of Engineers development soon after. The white paper is the working group's latest project, which grew out of the results of our 2014 industry foundation survey and subsequent summary paper presented at the 2015 ASCE/SEI Electric Transmission and Substation Structures Conference in Branson, Mo. The paper is available for download from the working group's webpage at www.dfi.org. At the DFI Annual Conference, working group members Peter Kandaris, Steve Davidow and Ashley Evans will be presenting a summary about the state of the practice in electric system foundation design, and will be proposing a framework for risk-based foundation design by accounting for uncertainty from both loads and resistances. COMMITTEE CHAIR RICK ELLMAN, P.E. Marine Foundations Committee At the committee meeting held during the DFI Annual Conference in N.Y. in October 2016, it was suggested that the committee reach out to the ASCE COPRI committee to plan future joint specialty seminars. To that end, the Marine Foundations Committee has participated in two specialty seminars with COPRI’s N.Y. Metropolitan Section. The first was held in January 2017 at NYU Tandon School of Engineering. The second was held in April 2017, also at NYU Tandon School of Engineering. Both events were well attended and well received. In addition, the committee co-hosted a joint specialty seminar with DFI’s Seismic and Lateral Loads Committee in Charleston, S.C., in May 2017. The 1.5-day seminar had good atten- dance and very interesting presentations. At SuperPile 17 in Coronado, Calif., ’ the committee awarded the 2017 Ben C. Gerwick Award for Innovation in Design and Construction of Marine Foundations to Bob Bittner of Bittner-Shen Consulting Engineers. Bittner delivered a presentation on Ben Gerwicks inspired innovation. ’ Currently, the committee is accepting nominations for 2018, and the selected recipient will receive the award at the International Foundation Congress and Equipment Exposition (IFCEE) in Orlando, Fla., in March 2018. Information and nomination forms are at www.dfi.org, under the ‘Awards’ tab. The committee has been exploring re- search opportunities for the DFI Committee Project Fund. One of the previous sug- gestions for potential research included the use of geopolymer concrete for marine structures. During our last committee meeting at SuperPile ’17, the committee discussed two potential topics/themes on foundations for offshore wind turbines — a decision support framework for selecting the most appropriate foundation concept or a detailed design guideline for monopoles. Initial considerations are indicating that the monopole research may be preferable. Possible subject areas could include: • Critical review of conventional oil & gas (O&G) design with respect to monopile foundations • Monopile limit states and design constraints • Recent advances in service limit state (SLS) based design • Treatment of cyclic loading and accumulated displacements Future activities include developing proposals for the DFI Committee Project Fund to support research that improves design of electric system deep foundations. Ideas discussed include collaborating with other DFI committees to perform full-scale foundation testing and to develop a database of full-scale tests performed for foundations used for supporting electric system struc- tures. DFI members are asked to contact one of the working group chairs with research ideas so that a proposal and budget can be developed by November of this year. Our next meeting will be held during the Annual Conference in October. If you want to participate but cannot attend, we will be video conferencing. Contact Peter ([email protected]) or Steve ([email protected]) if you are interested in joining the video call.
