CONTENTS FEATURES Departments PRESIDENT’S MESSAGE EXECUTIVE DIRECTOR UPDATE DFI ACTIVITIES Are Your Young Engineers Fired Up and Enthusiastic? . . . . . . . . . . . . . . . . . . . . . 7 It’s All About Communication . . . . . . . . 9 A report on the recent Winter Planning Meeting; news on upcoming DFI activities including the DFI-EFFC International Conference on Deep Foundations in Sweden, SuperPile ’14 in Cambridge, Mass., International Workshop on Micropiles in Krakow and the 39th Annual Conference in Atlanta; an update on the DFI Journal and more.. . . . . . . . 21 REGIONAL REPORT EDUCATIONAL TRUST REPORT TECHNICAL ACTIVITIES UPDATE DFI PEOPLE AND COMPANIES News about people, companies and products . . . . . . . . . . . . . . . . . . . . . . . 92 CALENDAR AD INDEX . . . . . . . . . . . . . . . . . . . 102 . . . . . . . . . . . . . . . . . . . . 102 DFI Middle East. . . . . . . . . . . . . . . . . . 41 . . . . 45 Updates on the activities of several DFI Technical Committees . . . . . . . . . . . . . 71 77 Deep Excavation Support at Toronto’s Shangri-La Brain Isherwood, MICE, FCSCE, P.Eng.; Tara Brown, P.Geo.; and Jenny Earle, EIT The Shangri-La hotel and tower was built at a challenging Toronto site, surrounded by other city buildings, and over an active subway, highly sensitive to move- ment during construction. The risks to the subway were major, and Isherwood Associates had to find the best shoring solution. After evaluating the situation, they recommended that the owner give up part of the eight-level basement so the engineers could provide a more uni- form movement pattern along one wall. FINDING COMMON GROUND ® DFI is an international association of contractors, engineers, suppliers, academics and owners in the deep foundations industry. We find common ground through networking, education, communication and collaboration. Our multi-disciplinary membership creates a consensus voice and a common vision for continual improvement in the planning, design and construction of deep foundations and excavations. Become a Member of DFI at www.dfi.org 85 Seepage Control, Cutoff Walls Manual: A Progress Report David B. Paul The U.S. Army Corps of Engineers is working on a manual about seepage control and cutoff walls, with input from DFI. This preview of the contents includes a summary of the Corps’ history with cutoff walls and the engineering thinking involved in their design. DEEP FOUNDATIONS • MAR/APR 2014 • 5 63 Stabilizing the Mill Creek Landslide with Steel H-Piles Kessi E. Zicko, P.E., Paul J. Lewis, P.E., and Robert E. Johnson A landslide along a Pennsylvania state highway caused concern, and PennDOT retained Gannett Fleming to evaluate methods to stabilize the slope. They chose driven steel H-piles based on construction costs and site impacts. The final design minimized land disturbance by using an existing, inactive roadbed along the toe of the embankment for the pile footprint. This design avoided wetlands, habitat for the timber rattle snake, and an area of archaeological interest.
