4th International Workshop on Micropiles, Venice, Italy 2002

Session I: Welcome and Introductions

Chair: Dr. Donald Bruce

• Renato Fiorotto (Italy)
• Dr. Donald Bruce (U.S.A.)
• Albert DiMillio (U.S.A.)
• Prof. Masaru Hoshiya (Japan)
• Scot Litke (U.S.A.)
• Prof. Ilan Juran (U.S.A.)
• Dr. Thomas Herbst (Germany)
• Keynote Lecture by Prof. Fedele Lizzi (Italy), son of Dr. Fernando Lizzi

Session II: Historical Development of Micropiles and Retrospectives on Past IWMs

Chair: Prof. Roger Frank, Secretary: Masao Sagara

• Highlights from the First Idea of a Root Pile to the European Standard on Micropiles (Dr. Thomas Herbst)
• Overview of Past IWMs (Prof. Roger Frank)
• Seattle, 1997 (Prof. Fred Kulhawy)
• Ube, 1999 (Prof. Masaru Hoshiya)
• Turku, 2000 (Pasi Korkeakoski)
• Lille, 2001 (Prof. Isam Shahrour)

Session III: Recent Case Histories on Structural Support and Seismic Applications (1)

Chairs: Horst Aschenbroich, Secretary: Paul Woodfield

• Seismic Upgrade Hewlett Packard Building 5 (Tom Armour)
• The Structure of Self-Drilling and Dynamic Grouted Micropiles Titan (Ernst Ischebeck)
• Grout Injection Bored Micropiles for Structural Support, Seismic Upgrading and Bank Stabilization in the U.S.A. (Horst Aschenbroich)
• High Capacity Micropiles for Seismic Upgrade of the Richmond-San Rafael Bridge (Michael Hadzariga)
• Central Artery/Tunnel Project Contract C09C1 U.S. Interstate 90 and Interstate 93 Interchange (Peter Iovino)

Session IV: Recent Case Histories on Structural Support and Seismic Applications (2)

Chair: Robert Traylor, Secretary: Paul Woodfield

• Use of Micropiles for Forepoling in Tunnels (Renato Fiorotto)
• Stabilizing Bridge Caissons using Micropiles – Case History (Douglas Heenan)
• Dulles Airport Caisson Augmentation (Allen Cadden)
• Soilex Casing Pile (Staffan Wetterling)
• Hybrid Pile Applications (Paul Woodfield)
• Central Artery/Tunnel Project Contract C19E1 Leverett Circle Connector – Bridge Pier (Peter Iovino)

Session V: In Situ Reinforcement and Networks Design, Construction and Case Histories

Chair: James Mason, Secretary: Prof. Isam Shahrour

• Full Scale Field Tests on Single Micropiles and Groups/Networks of Titan Micropiles and Future Initiatives (Dr. Donald Bruce and Gary Weinstein)
• In Situ Load Test of High Capacity Micropiles for a Foundation on Mountainous Terrain (Masao Sagara)
• In Situ Reinforcement of Slopes Using Micropiles (John Wolosick)
• Some Observations on Reticulated Micropile Groups (Prof. Fred Kulhawy)
• A Discussion of Lizzi’s Design of a Reticulated Retaining Wall (James Mason)

Session VI: Detailed Seismic Design and Performance Issues

Chair: Prof. Illan Juan, Secretary: Prof. Fusanori Mirua

• Probability study for a High-Capacity Micropile Bearing Mechanism (Prof. Masaru Hoshiya)
• Micropile Response to Hector Mine Earthquake (Walt Vanderpool)
• Horizontal Loading Tests on Model Foundations Retrofitted by Micropiles (Masahiro Nishitani)
• The Centrifugal Model Test on Pile Group Effect of the Pile Foundation Reinforced by the Micropile (Masashi Itani)
• Some Typical Exaples of Damage to Pile Foundations by the 1995 Hyougoken-Nanbu Earthquake (Prof. Fusanori Miura)

Session VII: Codes, Standards and Guidelines

Chair: Dr. Thomas Herbst, Secretary: Allen Cadden

• French Code (Prof. Isam Shahrour)
• Eurocode (Dr. Thomas Herbst)
• Japanese Code/Design (Dr. Jiro Fukui)
• DFI Guidelines (Tom Richards)
• U.S. (FHWA) Micropile Practice and Update – “Implementation Manual and Teaching Modules” (Tom Armour)
• U.K. Specifications (Paul Woodfield)
• Buckling of Micropiles (Allen Cadden)

Session VIII: Workshop

Chair: Prof. Ilan Juran , Secretary: Gary Weinstein

• Breakout sessions with team activity

Session IX: Research Programs

• FOREVER (Prof. Roger Frank)
• Research Programs in Japan (Dr. Jiro Fukui)
• FHWA Pooled Fund Study (Tom Shantz)
• Washington State University (Prof. Adrian Rodriguez-Marek)
• Northwestern University (Prof. Richard Finno) </li>
• University of Missouri (Prof. Erik Loehr)
• Rautaruukki (Finland) (Hannu Jokiniemi)
• Skanska (U.K.) (Philip Ball)

Session X: Review of the Workshop and Discussion of Future Directions

Chair: Tom Armour, Secretary Scot Litke

• Session III (Horst Aschenbroich)
• Session IV (Bob Traylor)
• Session V (James Mason)
• Session VI (Prof. Ilan Juran)
• Session VII (Dr. Thomas Herbst)
• Session VIII (Prof. Ilan Juran)
• Session IX (Al DiMillio
• Discussion of micropile organizations, applications, research needs, conferences and markets

Closing (Dr. Donald Bruce)