Developing Production Pile Driving Criteria from Test Pile Data (2011) / Chapter Skim
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3BACKGROUND Nationwide practices vary widely for developing and using production pile driving criteria, particularly from test pile data obtained from static load testing (ASTM D1143-07e1) , rapid load testing (ASTM D7383-08)
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Signal matching: The use of numerical modeling of a pile and pile driving system back-correlated to the results of a high-strain dynamic test to determine static axial resistance. The CAPWAP (CAse Pile Wave Analysis Program)
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5Degree of Soil Setup or Relaxation and Its Effect on Driving Criteria Soil setup can have a major impact on driving criteria. Although restrikes or load tests may be performed after setup has occurred to document that the pile has the design resistance, the driving criteria are set for the conditions at the time of driving.
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if variations in soil strength are not taken into account. If only one test is done and the blow count is 10 blows per foot when the required resistance is met, then all piles will be subject to those criteria if an allowance for soil variation is not considered.
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