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 63 Paul Doherty: A Remarkable Young Engineer 69 Applying Reasonable Quality Control and Verification to Soil Mixing David Miller, P.E. With many deep foundation techniques, one can physically observe, to some degree, the product being constructed. Not so with soil mixing, which has resulted in skepticism with the technique and product. This article highlights that a well-designed quality control program, where the work is monitored carefully and where proper verification requirements and engineering judgment are applied, is an extremely beneficial tool to make soil mixing an extremely useful technology. DEEP FOUNDATIONS • JULY/AUG 2017 • 3 COVER STORY 14 Life Extension of 132 kV Lattice Tower Foundations Allan Herse, CPEng, RPEQ ® 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] Piling & Civil Australia (PCA) has developed a technique for quick and cost-effective foundation replacement that can extend the life of an existing tower foundation for high-voltage power lines from 5 to 50 years. This article describes the patented system used to upgrade tower foundations in Australia with micropiles while under live-line conditions without requiring costly outages. O T N A S D I N N S U T O I T F U E P T E E D
