1 st International Geotechnical Symposium on Helical Foundations

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1 1 st International Geotechnical Symposium on Helical Foundations August 8-10, 2013 University of Massachusetts Amherst, Ma. USA Day 1: August 8, :30 8:45 Registration Final Program 8:45 9:30 Welcome & Opening Address Alan J. Lutenegger 9:30 10:30 Session 1 Case Histories-I Session Chair Alan J. Lutenegger Case Histories on the Use of Helical Piles for Retrofitting and New Construction, by Dino Vito and Tayler Cook Innovative Use of Helical Foundations for a Submarine Simulation Unit at Electric Boat Division, U.S. Navy Submarine Base, Groton, CT by Matthew A. Conte & Samuel P. Clemence Helical Pulldown Micropiles for Baptist Hospital Expansion, Pensacola FL by Cary Hannon 10:30-11:00 Morning Break No.1 Helical Piles Just What the Doctor Ordered by James Stewart 11:00 12:00 Session 2 Deflection Session Chair Alan J. Lutenegger Settlement Based Helical Screw Pile Design by Michael Perlow Prediction of Helical Anchor Deflection in Uplift Loading in Clay by Daniel George and Samuel P. Clemence Deflections of Helical Piles at Working Loads A Load Test Database Review by James A. Cherry and Howard A. Perko Uplift Capacity Model Uncertainty for Helical Anchors in Clay by Armin W. Stuedlien and Marco Uzielli 1

2 12:00-1:00 Lunch 1:00 2:00 Keynote Lecture 1 Review of Centrifuge Model Testing of Helical Foundations by Cristina de H. C. Tsuha, Luc Thorel and Gerard Rault 2:00 3:00 Session 3 Case Histories-II Session Chair - Samuel P. Clemence Highly Loaded Helical Piles in Compression and Tension Applications: A Case Study of Two Projects by Dino Vito and Tayler Cook???? by and B. Hindbo and Joe Roper Axial and Lateral Capacity of Tapered Helical Piles for Transmission Tower Structures by Mark H. Fairbairn, Lee Goen, Jason Herron & Gary L. Seider Historic Bolivar County Courthouse Underpinning, Rosedale, MS by Cary Hannon 3:00 3:30 Afternoon Break No. 2 3:30 4:30 Session 4 Torque Correlations Session Chair Samuel P. Clemence Relationship Between Installation Torque and Axial Capacities of Helical Piles by Mohammed Sakr Torque Correlation for Solid Square Shaft Helical Piles by Joe Heinisch and Tayler Cook Prediction of the Installation Torque Resistance of Large Diameter Helical Piles in Dense Sand by Kenneth G. Gavin, Paul Doherty and Giovanni Spagnoli Factors Affecting Torque and Torque Correlations for Screw-Piles and Helical Anchors by Alan Lutenegger 4:30 5:00 Open Forum and Discussion 6:00 Symposium BBQ Dinner 2

3 Day 2: August 9, :30 9:30 Keynote Lecture 2 Review of Small-Scale Laboratory Model Investigations of Helical Anchors and Screw Piles by Samuel P. Clemence and Ashraf Ghaly 9:30 10:30 Session 5 Case Histories-III Session Chair -???? Rehabilitation and Reconstruction of Existing Crib Wall Retaining Structures with Helical Piers by Phil Scheid Monotonic and Cyclic Axial Performance of Steel Fibre-Reinforced Helical Pulldown Micropiles (RHPM) by M. Mekkey El Sharnouby and M. Hesham El Naggar Helical Pipeline Restraints for Georgia Pacific Rice Creek Plant, Palatka, FL by Cary Hannon Application of Helical Piles for Solar Station in China by Daping Xiao & Chunqiu Wu 10:30 11:00 Morning Break No. 3 11:00 12:00 Session 6 Analysis and Design-I Session Chair -???? 12:00 1:00 Lunch The Influence of the Geometry on the Helical Anchor Behavior in a Tropical Residual Soil by Loana H. Sanchez, João M. S. M. Santos Filho, Thiago C. Santos and Cristina de H. C. Tsuha Full Scale Field Investigations & Numerical Analysis of Innovative Seismic Composite Fiber Reinforced Poylmer and Reinforced Grouted Helical Screw Instrumented Piles Under Axial & Lateral Monotonic & Cyclic Loadings by Yasser Abdelghany & M. Hesham El Naggar Uplift of Shallow Single-Helix Screw-Piles in Sand and Clay by Alan J. Lutenegger Application of Two-Dimensional Photoelastic Analysis Study of Helical Anchors by Jose Antonio Schiavon, Cristina de H. C. Tsuha and Edmundo Rogerio Esquivel 3

4 1:00 2:00 Keynote Lecture 3 Review of Full-Scale Field Investigations of Screw Piles and Helical Anchors by Alan J. Lutenegger 2:00 3:00 Session 7 Analysis and Design-II Session Chair -???? True Pitch Helices Importance to Integrity of Screw Pile and Anchor Design by Daniel Coats High-Strain Dynamic Load Testing On Helical Piles Case History by Benjamin White, Ashref Alzawi, Thomas D. Bradka and Yung Phang Using the Internet as an Interactive Platform to Design Soil Anchors by Ashraf Ghaly Evaluation of the Effect of Installation on the Helical Pile Performance in Sand by Centrifuge Tests by Cristina de H. C. Tsuha, Luc Thorel, Gerard Rault, and Jacques Garnier 3:00 3:30 Afternoon Break No. 4 3:30 4:30 Session 8 Helical Foundations and Building Codes Session Chair Alan J. Lutenegger Experience with Chicago Building Code and Helical Piles by Gary L. Seider Helical Foundations and Building Codes by Michael Perlow 4:30 5:00 Open Forum and Discussion 4

5 Day 3: August 10, :30 11:00 Prediction Event Results Presentation of Cases by Alan J. Lutenegger 11:00-12:00 Discussion 5

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