Retaining Wall Construction - PDF by gcw21244

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									Geotechnical Information
   Exchange Seminar
        February 4, 2003




  Retaining Wall Construction
    Drilled shafts with tieback anchors
     Retaining Wall Elements

–   2500 Lin. Ft. of retaining walls
–   424 Each tiebacks
–   18,000 Lin. Ft. of drilled shafts
–   2800 Cu. Yd. of facia wall concrete
             Specifications

• Drilled Shafts – 524

• Tiebacks – Special Provisions
ODOT Inspection
          Testing of Tiebacks
•   4 Failure Tests
•   4 Creep Tests
•   34 Performance Tests
•   386 Proof Tests
               Failure Test
• Not one of the plan production tiebacks

• Tested to failure or 3 times the max. tieback
                   design load
               Creep Test


• Conducted on first two tiebacks installed
          Performance Test
• Conducted on:

     - third and fourth tiebacks installed
     - 7 percent of remaining tiebacks
                Proof Test


• Testing of all remaining tiebacks
           Reports


• Weekly

• Final
Positive and Negative Elements
Questions

								
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