1st International Workshop on Micropiles, Seattle, WA 1997

Introductory Remarks

• Dr. Donald A. Bruce; ECO Geosystems, Inc.
• Dr. Al DiMillio; US DOT, Federal Highway Administration
• Prof. Hoshiya; Japanese Association of Micropiles
• Dr. Okahara; Public Works Research Institute
• Prof. Schlosser; French National Research Project

Session 1 – Geotechnical Assessment & Construction

• Selection of Geotechnical Parameters; Prof. Kulhawy, Cornell University, USA
• Drilling Methods; Dr. Bruce, ECO Geosystems, Inc., USA
• Grouting Materials and Methods; Mr. Turner, Applied Geotechnical Engineering, UK

Session 2 – Reinforcement Design

• Steel Design (1); Dr. Herbst, Allspann, Germany
• Steel Design (2); Mr. Lehtonen, Rautaruukki, Finland
• Materials Used in Micropiles in Japan; Mr. Shimazu, Japanese Association for Steel Pipe Piles, Japan

Session 3 – International Standards & Programs

• Bridge Construction Standards in Japan; Dr. Okahara, PWRI, Japan
• Seismic Design Concepts and Issues for Reticulated Micropile Foundation Systems; Mr. Mason, Cornell University, USA
• Review of French “Forever” Project; Prof. Schlosser, Terrasol and Dr. Frank, ENPC-CERMES, France
• State-of-the-Art; Application of Micropiles in Japan; Mr. Tsukada, PWRI, Japan
• Model Studies at Polytechnic University; Prof. Juran, Polytechnic University, USA

Session 4 – Applications & Implementation

• Should Piles be Rigid or Flexible? Lessons from the Damage Caused by Past Earthquakes; Prof Miura, Yamaguchi University, Japan
• Review of FHWA Micropile Implementation Manual; Mr. Groneck, Donald B. Murphy Contractors and Mr. Chassie, FHWA, USA
• Damages to Bridge Foundations During the Hanshin Earthquake, Mr. Fukui, PWRI, Japan

Session 5 – Applications & Implementation (Continued)

• Design Methodology; Micropiles for Slope Stabilization and Earth Retention; Mr. Armour, Donald B. Murphy Contractors, USA
• Use of Micropiles for Seismic Retrofit; Mr. Bromenschenkel, Caltrans, USA

Problem Solving Exercise: Static/Seismic Design and In Situ Slope Stabilization

Future Needs Assessment

Closing Remarks

References