CONTENTS FEATURES COVER STORY I DFI 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] Executive Director Theresa Engler [email protected] Executive Editor Helen Robinson [email protected] Managing Editor Emeritus Manuel A. Fine, [email protected] Advertising Manager Karol Paltsios, [email protected] DFI Executive Committee President, Robert B. Bittner Vice President, John R. Wolosick Secretary, Matthew Janes Treasurer, Dan Brown Past President, James A. Morrison Other Trustees Patrick Bermingham David Borger Gianfranco Di Cicco Rudolph P. Frizzi Frank Haehnig Bernard H. Hertlein Gerry Houlahan James O. Johnson Douglas Keller Samuel J. Kosa K.S. Rama Krishna Marine Lasne J. Erik Loehr Raymond J. Poletto Michael H. Wysockey 51 Member Profile: Seth Pearlman, P.E., D.GE., President and CEO, Menard USA: Philosophical Designer and Industry Advocate 58 Digging Deeper: Top-Down Construction of the Marriott Marquis Nathan Rosenker, Andrew Cameron and Giovanni Bonita, Ph.D., P.E. The 6th Marriott Marquis in North America was squeezed into a two-acre site with a 130 ft ceiling cap in the heart of downtown Washington D.C. The only viable delivery method for a project of this magnitude and configuration was the approach of top- down construction. This allowed crews to construct the deep subgrade structure concurrently with installation of the building’s superstructure. The use of slurry walls, drilled shafts and diaphragm slabs were essential in overcoming the many challenges derived from the Marquis’ limited space. DEEP FOUNDATIONS • NOV/DEC 2014 • 3 SPECIAL ISSUE :LANDMARKS 12 Design and Construction of the New VDOT Midtown Tunnel Rick Ellman, P.E., and Ian Chaney, P.E. The Hampton Roads area experiences some of the worst traffic congestion in Virginia. With continued growth of the ports and increasing demand, VDOT initiated the Downtown Tunnel/Midtown Tunnel/MLK Expressway Project, a $2.1 billion Design/Build/Finance/Operate endeavor most notably involving the construction of a new two-lane vehicular tunnel utilizing the Immersed Tube Tunnel (ITT) method. It will be the largest design-build project constructed in the history of the Hampton Roads District. The New VDOT Midtown Tunnel was an Outstanding Project Award (OPA) Finalist. O T N A S D I N N U S T O I F T U E P T E E D
