• Presented a well-received, moderated plenary session at the DFI 2019 Annual Conference that was simulcast as a webinar and is posted on DFI’s YouTube channel. • Held a committee meeting at the DFI 2019 Annual Conference attended by new members, including owners, contractors and academics. • Convened a meeting with USACE to assist in reviewing and developing technical specifications. Risk and Contracts • Exploring the possibility to organize a workshop with USACE on PIMS implementation challenges. Chair: Alexander Filotti, P.E., M.B.A., Hofstra University, [email protected] Trustee Liaison: Conrad Felice, Ph.D., P.E., P.Eng., D. GE., F. ASCE., C.W. Felice, [email protected] • Developing a consensus list of general risk statements that will be compiled into a position statement for the industry. • Developing a detailed book of risks for foundation design and construction. Seepage Control Chair: Michael Kynett, P.E., MBK Engineers, [email protected] Trustee Liaison: David Paul, P.E., Paul GeoTek Engineering, [email protected] • Helped establish the DFI International Grouting Committee. • Prepared and reviewed draft summary notes on the USACE Sacramento District cutoff wall workshop. • Supported one-day workshop in May 2019 on groundwater cutoff methods for deep excavations for the City of Toronto. • Planning to review the 2 draft of the USACE Engineering Manual on Seepage Control Cutoffs for Dams and Levees. nd • Participating in the update of ICOLD Bulletin 51, Filling Materials for Watertight Cutoff Walls 1985. • Exploring opportunities to study long-term performance and aging of cutoff walls. • Working with the Project Information Management Systems (PIMS) Committee on development of guidelines for information management systems related to seepage control projects. Seismic and Lateral Loads Chair: Kwabena Ofori-Awuah, P.E., ENV SP., Koforia, [email protected] Trustee Liaison: Anne Lemnitzer, Ph.D. P.E., University of California | Irvine, [email protected] • Prepared materials for Seismic and Lateral Loads Design Guide Workshops, funded through the DFI Committee Project Fund. 66 • DEEP FOUNDATIONS • JAN/FEB 2020 Giovanni Bonita Stefano Valagussa David Miller • Published Design Guidelines for Bridge Pile Foundations Subjected to Liquefaction-Induced Lateral Spreading – Ground Motions (Researcher: Professor Arash Khosravifar, University of Portland). • Researching Minimum Required Length for Geotechnical Lateral Stability of Rock-Socketed Pile Shafts with goal of project to develop practical solutions to resolve the issue of “unzipping” of p-y springs in strong rock. Slurry Wall • Developing white papers on practical aspects of pile head fixity and p-y curves. • Revising the Seismic and Lateral Load Design Guide. Chair: Giovanni Bonita, Ph.D., P.E., P.G., GEI Consultants, [email protected] Trustee Liaison: Stefano Valagussa, Treviicos Corporation, [email protected] • Supported one-day workshop in May 2019 on groundwater cutoff methods for deep excavations for the City of Toronto. • Continuing to collect photos and graphics for cutoff wall selection guide. • Preparing PowerPoint presentations on overview of design and construction of structural slurry walls and cutoff walls. David Paul Kwabena Ofori-Awuah Anne Lemnitzer Alexander Filotti Conrad Felice Michael Kynett
