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:
  Design Literature Reviews Load Tests Pile Driving Piles (Supports) Soils Vibration
• 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.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:b8cea8a5debc6db8aa7a69c37eee14da3e8bcc16095faff699321aa3b2d6184f
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29623/dot_29623_DS1.pdf
• File Type:
  [PDF - 9.92 MB ]