CONTENTS FEATURES Departments PRESIDENT’S MESSAGE Risky Business . . . . . . . . . . . . . . . . . . . . 7 EXECUTIVE DIRECTOR UPDATE Embracing Technology to Connect, Communicate and Collaborate . . . . . . . 9 . . . . . . DFI ACTIVITIES Committee Project Fund Awards; a recap of the Winter Planning Meeting; a recap of IFCEE 2018; updates on the DFI-EFFC 43 Annual Conference on Deep Foundations and upcoming events; and more (IFCEE photos by Mark Skalny and DFI photos by Herb Engler) . . . . . . . . . . 23 Conference in Rome, SuperPile ’18, the rd REGIONAL REPORT DFI Middle East . . . . . . . . . . . . . . . . . 75 EDUCATIONAL TRUST REPORT An update on the recent board meeting, a recap of the student program at Georgia Tech, a new golf clinic at the New Jersey golf outing, and upcoming events . . . . 79 TECHNICAL ACTIVITIES UPDATE New technical committee chairs announced, new Industry-wide Working Group on Risk, a report from the ACIP Pile Committee, updates on the DFI-ASCE Pittsburgh Geo-Institute Section – Annual Joint Meeting and the Joint Society Women’s Professional Development Skills Workshop at IFCEE . . . . . . . . . . . . . . 117 BENEATH THE SURFACE Profit Sharing, an Employee Magnet . . . 121 LEGALLY SPEAKING Substantial Performance: When is Close Good Enough?. . . . . . . . . . . . . . . . . . 125 DFI PEOPLE AND COMPANIES News about people, companies and products . . . . . . . . . . . . . . . . . . . . . . 127 CALENDAR & AD INDEX . . . . . . . . 132 DEEP FOUNDATIONS The Magazine of the Deep Foundations Institute (DFI) is published bimonthly by DFI. 326 Lafayette Avenue Hawthorne, NJ 07506 USA T: (973) 423-4030 | F: (973) 423-4031 Email: [email protected] 95 Secant Pile Walls and Grouting for Critical Support of Excavation Sitotaw Y. Fantaye, P.E., Dimitrios Iliadelis, P.E. and David P. Sposito, P.E. Construction of a new emergency vent plant was required for the upgrade of a subway ventilation system. Secant piles installed to top of bedrock had been suggested for both excavation support and groundwater control. However, an alternate support of excavation and groundwater control system consisting of secant piles and a permeation grout curtain wall was implemented as part of a value- engineered solution. 103 Applied Seismic Tools for Geotechnical Site Characterization Erick Baziw and Gerald Verbeek Geotechnical site characteriza- tion is an essential requisite for the design of deep foundation elements. In this article, various seismic tools to perform this work are discussed. 111 Risks in Ground Engineering Arthur Tipter, Sr., P.E. The author provides an insight into design-based risks on ground engineering projects. These types of risk must be identified and mitigated throughout a project from concept through completion through open dialog between the client, contractor and design team. 100 10 20 30 40 50 60 70 80 90 0 0 10 20 30 40 50 60 Average Rock Hardness (MPa) DEEP FOUNDATIONS • MAY/JUNE 2018 • 5 70 80 90 100 Production Rate (% per operational hour)
