CONTENTS FEATURES I DFI Graphic Design Faye Klein DFI Executive Committee President Dan Brown, Ph.D., P.E., D.GE Vice President Matthew Janes, P.Eng. Secretary Gianfranco Di Cicco Treasurer Michael H. Wysockey, Ph.D., P.E. Past President John R. Wolosick, P.E., D.GE Other Trustees Conrad Felice, Ph.D., P.E. Frank Haehnig Gerry Houlahan, P.E. James O. Johnson Mike Kelley K.S. Rama Krishna, Ph.D. Anne Lemnitzer, Ph.D., P.E. J. Erik Loehr, Ph.D., P.E. Matthew E. Meyer, P.E. David Paul, P.E. Howard Perko, Ph.D., P.E. Thomas D. Richards, P.E., D.GE Alan Roach Lori Simpson, P.E., G.E. Martin G. Taube , P.E., P.G. Stefano Valagussa 75 Member Profile — Ben Stroyer and the Ideal Group: A Unique Company 81 Dam Anchoring Fundamentals — Part 1 Dr. Devon K.V. Mothersille, CEng, FICE, and Professor Stuart Littlejohn This article presents the fundamental principles for the evaluation of minimum free tendon length and the determination of fixed anchor dimensions and tendon strength. Quality control aspects of anchor construction regarding drilling, borehole testing, tendon fabrication and tendon installation are also discussed. COVER STORY - 2018 OPA WINNER 14 181 Fremont – Very Deep Foundations at a Dense Urban Site Dr. Kirk Ellison, P.E., G.E., Dr. Eric S. Lindquist, P.E., and Peter Faust, Dipl.-Ing. ® Executive Director Theresa Engler, [email protected] Executive Editor Dr. Antonio Marinucci, M.B.A., P.E. [email protected] Managing Editor Emeritus Manuel A. Fine, P.E., [email protected] Managing Editor and Advertising Manager Karol Paltsios, [email protected] Drilled shafts were constructed as deep as 260 ft (79.2 m) and socketed as much as 25 ft (7.62 m) into the bedrock for the mixed-use high-rise tower. A watertight, stiff temporary support of excavation system was required to allow the excavation and construction of a five-level basement that extends to about 60 ft (18.3 m) below the surface without adversely affecting adjacent structures. DEEP FOUNDATIONS • SEPT/OCT 2018 • 3 O T N A S D I N N S U T O I T F U E P T E E D
