The performance and constructability of pile foundations in coarse granular soils contains significant uncertainty due to challenges in site characterization and uncertainty in pile prediction methods. The Reusable Test Pile idea was conceived as a large diameter instrumented test pile that could be deployed during the site investigation phase of a project where a deep foundation design and or coarse grained soils were expected. Static and dynamic data obtained by the RTP during this phase was envisioned to be useful to designers and contractors for assessing soil properties, pile drivability, and pile performance (capacity, displacement). This report contains four journal papers and a M.S.C.E. thesis that describe the equipment design, data collected, and data processing and interpretation as it applies to evaluating penetration resistance, soil properties, pile driving dynamics, and static pile loading behavior. This includes an initial formulation for static pile capacity estimation based on RTP data and considerations for dynamic pile modeling.
In Florida, many structures are built on driven piles. Though it seems straightforward, piledriving involves complex interactions between the pile, th...
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United States Department of Transportation
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