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 David Borger, P.E. Conrad Felice, Ph.D., P.E. Frank Haehnig Gerry Houlahan, P.E. James O. Johnson 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 65 Member Profile — Amy Cerato, Ph.D., P.E.: Blending Academic Research with Industry Needs 69 Numerical Modelling in Geotechnical Engineering Paul Doherty, Ph.D., and John O’Donovan, Ph.D., C.Eng., MICE Finite Element Method (FEM) modelling is not a new concept; however, the wide- spread prevalence of FEM for geotechnical design has only recently been made pos- sible by technological improvements in software and hardware. While these tech- niques open up new possibilities in terms of engineering design, it is critically important to understand the limitations of such geotechnical software and to be cogni- sant of the inherent assumptions in the design process. DEEP FOUNDATIONS • JAN/FEB 2017 • 3 COVER STORY 12 Performance of Foundation Systems in Chicago William H. Walton, P.E., S.E. ® Executive Director Theresa Engler, [email protected] Executive Editors Helen Robinson, P.E. 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] The author recounts his experiences with the design, construction and monitoring of various foundation types in Chicago, a city where standard geotechnical practice is to assume then verify. Technologies and techniques discussed include belled caissons, drilled micropiles, large diameter augercast piles, jet grouting, pressuremeter testing and O-cell testing. A case study is included that discusses the underpinning and earth retention system used for the relocation of the German WWII U505 submarine housed at the Chicago Museum of Science & Industry East Pavilion. O T N A S D I N N S U T O I T F U E P T E E D
