CONTENTS FEATURES Departments PRESIDENT’S MESSAGE Why Are DFI Events and Conferences So Good? . . . . . . . . . . . . . . . . . . . . . . . . . . 7 EXECUTIVE DIRECTOR UPDATE SuperPile – A Must-Attend 2020 Event . . 9 DFI ACTIVITIES SuperPile ’20, upcoming events, new publications, new DFI team members, a new magazine editor and more. . . . . . . 25 REGIONAL REPORT DFI of India. . . . . . . . . . . . . . . . . . . . . 61 EDUCATIONAL TRUST REPORT Updates on the new Terracon Scholarship, new trustee, Fine and Langan Legacy scholarship recipients, at-large scholarship applications, WiDF professional development grant applications, and upcoming events. . . . . . . . . . . . . . . . . 65 TECHNICAL ACTIVITIES UPDATE New committee co-chair, update from the Augered Cast-in-Place and Drilled Displace- ment Pile Committee, and an FHWA National Geotechnical Team Update . . . 69 LEGALLY SPEAKING Potential Reduced Construction Impact of Endangered Species Act. . . . . . . . . . . 111 DFI PEOPLE AND COMPANIES News about people and companies . . 115 CALENDAR & AD INDEX . . . . . . . . 122 COVID-19 (Coronavirus) Update DFI is monitoring recommendations from the World Health Organization (WHO), the US Centers for Disease Control and Prevention (CDC), and health authorities of those countries where we have scheduled conferences and other activities. Check www.dfi.org and event-specific web pages for updates. DEEP FOUNDATIONS The Magazine of the Deep Foundations Institute (DFI) is published bimonthly by DFI. 326 Lafayette Avenue Hawthorne, NJ 07506, USA T: +1 (973) 423-4030 | F: +1 (973) 423-4031 Email: [email protected] DEEP FOUNDATIONS • MAR/APR 2020 • 5 87 Adjacent Structure Technical and Legal Risks Scott J. DiFiore, P.E., Gregory R. Meeder, James P. Chivilo and Matthew H. Johnson, P.E. Heavy civil construction in urban environments can damage existing, adjacent structures through ground movement and vibration. Owners of new construction projects and their team must be aware of legal and technical risks posed by excavation, dewatering and demolition to navigate and allocate those risks. This article discusses approaches to early and frequent communication among project participants that are necessary to manage risks, regardless of local regulations that may or may not exist to drive risk-related processes. 95 Micropiles to Improve Stability of Factory Machining Centers Glenn Patterson Modern manufacturing facilities employ a quick production pace and precision machines that work with few inter- ruptions. The large machining centers involved require an independent foundation that is free from vibrations of all other shop machinery and equipment. As a result, micropiles can improve installation of machinery due to their minimal impact on factory schedules, speed of installation, small footprint of installation equipment, and ability to create lasting, competent foundations for machinery. 103 Improving Helical Pile-to-Foundation Connections Serhan Guner, Ph.D., P.Eng., and Sundar Chiluwal Many structures are subjected to sequential applications of compression and tension loads due to events such as windstorms. Tall and light structures that are particularly vulnerable to the tensile components of cyclic loads can be developed with helical pile foundations as part of addressing this. DFI’s Helical Pile and Tiebacks Committee funded a research study to help evaluate current helical pile designs and inform the development of more robust helical pile-to-foundation connections.
