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U.S. (FHWA) MICROPILE PRACTICE AND UPDATE “ Implementation Manual & Teaching Modules” TOM A. ARMOUR, P.E. SESSION VII CODES, STANDARDS AND GUIDELINES IWM 2002 MAY 29 – JUNE 1, 2002 REFERENCE PROGRAMS “Funded by FHWA to Speed Up the Implementation of Micropiles” State of the Practice Review (Step 1) -1997 Design and Construction Implementation Manual (Step 2) - 2000 National Technical Workshop (Step 3) - 2002 IMPLEMENTATION MANUAL - (STEP 2) “Recommended Guidelines” Micropile Definition & Classification System Micropile Design Guidelines Service Load Design Load Factor Design Load Testing Recommendations Quality Assurance Quality Control (QA/QC) Contracting Methods Owner Controlled Design Contractor Design/Build Guideline Specifications Alternative Procurement Methods Micropile Contractor Prequalification Geotechnical Design Summary Contractor Submittals Pile Load Testing Measurement and Payment NATIONAL TECHNICAL WORKSHOP- (STEP 3) “Training Module” Primary Objective To develop a national technical workshop targeted at Federal and State Dept. of Transportation specialists involved in design, construction and specification development for transportation facilities. NATIONAL TECHNICAL WORKSHOP- (STEP 3) “Training Module” Other Objectives 1. Introduce micropile technology 2. Present site investigation, load testing and QA/QC recommendations 3. Present comprehensive design methods 4. Provide example plans and guideline specifications NATIONAL TECHNICAL WORKSHOP- (STEP 3) “Training Module” Important Statistics Contractor is ADSC – “The Industry” 15 month contract to complete module 2- Day Training Course 75 training courses anticipated to be taught throughout USA over next 3 - 4 years USA MICROPILE PRACTICE “Where We Are Today” No AASHTO Approval 2001 AASHTO LRFD Highway Bridge Construction Specifications Public Agencies gaining knowledge with increased use Specialty Contractors still leading the charge in the development and specification of micropile applications FHWA/Industry increasing micropile focus through ADSC/DFI INDUSTRY UPDATE “Current Works In Progress” Industry Seminars Industry Short Courses Operator Training Courses Inspector Training/Certification Design/Construction Training Modules INDUSTRY UPDATE (con’t) “Current Works In Progress” Regional Educational Presentations Regional Technical Assistance Research & Development IWM INDUSTRY UPDATE (con’t) “Current Works In Progress” Fund Raising Technical Library Practice Updates Public Relations DFI Coordination