CONTENTS FEATURES Departments PRESIDENT’S MESSAGE Determination: Professional and Self . . . 7 EXECUTIVE DIRECTOR UPDATE The DFI Community . . . . . . . . . . . . . . . 9 DFI ACTIVITIES Recaps of DFI-India 2019, ISM International Workshop on Micropiles and Panamerican Conference in Mexico; updates on upcoming events and DFI’s 45 Annual Conference on Deep Foundations; and more. . . . . . . . . . . . . . . . . . . . . . . 23 th Steve Davidow, P.E., S.E., P.Eng., and Michael Davidson, P.E. 79 On Thin Ice — Micropiles in Harsh Northern Climates Constructing foundations in subfreezing and highly-variable subsurface conditions is a challenge. Micropiles were used to support various structures for the new Labrador-Island Link, a 683 mi (1,100 km) long high-voltage transmission line in Newfoundland and Labrador, Canada. REGIONAL REPORT DFI Middle East. . . . . . . . . . . . . . . . . . 49 EDUCATIONAL TRUST REPORT Updates on the Trust Board Meeting, Annual Gala Dinner, Merjan and Tamaro Scholarship recipients, Giving Tuesday, recent donors and upcoming events . . 53 TECHNICAL ACTIVITIES UPDATE An update on all activities and accom- plishments of DFI’s technical committees and industry working groups . . . . . . . . 61 GUEST EDITORIAL Making Foundation Design Courses More Engaging and Effective for Students. . . 103 LEGALLY SPEAKING Indemnification Against Release/“Disposal” of Hazardous Materials . . . . . . . . . . . 105 DFI PEOPLE AND COMPANIES News about people, companies and products . . . . . . . . . . . . . . . . . . . . . . 107 CALENDAR & AD INDEX . . . . . . . . 114 Stanley L. Worst, P.E., Piotr Kozlowski, and Matthew J. Niermann, P.E. 95 Jet Grout Underpinning to Support the Waterman Hospital 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] The Waterman Hospital in Tavares, Florida, was undergoing an expansion and required a below-grade excavation immediately adjacent to the Emergency Department. Structural jet grout underpinning was used to support the existing building and to serve as the earth retention system in the more sensitive area. Jet grout underpinning was chosen to minimize movements, loss of ground and settlement of the structure, which was bearing on clean sand deposits. DEEP FOUNDATIONS • JAN/FEB 2020 • 5 87 Shoring and Foundations at Canada’s First Supertall Building Shawna Munn, P.Eng., Nadir Ansari, P.Eng., D.GE, and Toben Jerry When completed, “The One” in Canada, will stand at 85 stories and 1,005 ft (305 m) in height. Tight site constraints along with design demands resulted in many construction, design and logistic challenges with the excavation shoring and foundation work for the supertall building.
