Field Testing and Calibration of EDAR Method for Estimating Embedded Depth of Pile Foundation in North Carolina

Details

• Creators:
  Guddati, Murthy ; Rahman, Shamim ; Samu, Vivek
• Corporate Creators:
  North Carolina State University. Department of Civil, Construction, and Environmental Engineering
• Corporate Contributors:
  North Carolina Department of Transportation. Research and Development Unit ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Calibration
  • Depth
  • Field tests
  • Information processing
  • Length
  • Methodology
  • Pile foundations
  • Pumped concrete
  • Reflection
  • Signal processing
  More +
• Publication/ Report Number:
  FHWA/NC/2018-29
• Resource Type:
  Tech Report
• Geographical Coverage:
  North Carolina ; United States
• Edition:
  October 2017 – March 2020
• Corporate Publisher:
  North Carolina State University. Research and Development Unit
• Abstract:
  A new methodology to estimate the unknown pile length called Effective Dispersion Analysis of Reflections (EDAR) is developed. EDAR explicitly incorporates the dispersion properties of the wave generated on hammer impact to provide a length estimate. A software package is developed for seamless application of the EDAR methodology facilitating fata acquisition in the field and subsequent analysis of the data to estimate the pile length. EDAR is validated successfully in laboratory and field conditions in North Carolina. The report contains the details of EDAR application for prestressed concrete piles including details of testing equipment, testing, stepwise analysis procedure, and the underlying theory.
• Format:
  PDF
• Funding:
  RP 2018-29
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/56267/dot_56267_DS1.pdf
• File Type:
  [PDF - 11.66 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:fdab807a86e5dbaf207f8db9bfe1ca4ffc6d63a01c99770e26f312713ba7e637