Investigation of pile setup (freeze) in Alabama : development of a setup prediction method and implementation into LRFD driven pile design.

Details

• Creators:
  Steward, Eric J. ; Cleary, John
• Corporate Creators:
  University of South Alabama. Dept. of Civil Engineering
• Corporate Contributors:
  Alabama. Dept. of Transportation
• Subject/TRT Terms:
  • Piles (Supports)
  • Pile driving
  • Soils
  • Vibration
  • Load tests
  • Design
  • Literature reviews
• Publication/ Report Number:
  930-839R
• Resource Type:
  Tech Report
• Geographical Coverage:
  Alabama
• Corporate Publisher:
  University of South Alabama. Dept. of Civil Engineering
• Abstract:
  The Alabama Department of Transportation (ALDOT) often uses deep foundations ; consisting of driven piles, particularly in the southern half of the state, to support bridges or other ; highway structures. In the fiscal year 2012, a total of 22 bridges were let to contract by the ; ALDOT for a sum of about $37 million (ALDOT 2012). Bullock (1999) reported that the cost of ; a deep foundation for some bridges can be about 30% of the overall cost and thus a reduction in ; cost could produce a substantial savings to the entire project and passed on to the taxpayers. ; ALDOT is interested in investigating the potential of including a phenomenon called pile ; setup into the design procedures of driven piles to provide a more efficient and cost-effective ; product that provides the same level of safety. ALDOT is currently transitioning from ASD ; design methods to LRFD design methods, as mandated by the Federal Highway Administration ; (FHWA). ; This funded research is tasked with three main topics of investigation. The first is to ; identify the pile setup potential of the driven piles installed within the soils of the state of ; Alabama. This task requires the organization and analysis of historical records of design and ; installed pile load tests. The second task is to incorporate these historical records into the ; calibration of statistically determined resistance factors for LRFD design methods. The third ; task is to install four typical driven pile types into the soil of a planned bridge location to ; investigate the amount of pile setup as well as the propagation of vibrations to surrounding ; locations during the installation of the piles. The third task was added as an addendum to the ; project, and the vibration report was completed and attached to the end of this report.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29623/dot_29623_DS1.pdf
• File Type:
  [PDF - 9.92 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:b8cea8a5debc6db8aa7a69c37eee14da3e8bcc16095faff699321aa3b2d6184f