Effect of length-to-diameter ratio on the usable frequency range of impulse response testing in pile foundations

Helsin Wang, Chung Yue Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The guided wave theory has been introduced to determine the usable frequency range for reliably using the well-known one-dimensional wave theory to interpret impulse response testing results in pile foundations. Length-to-diameter ratio is usually considered a key factor that affects the analysis results. In this research, 37 testing cases with length-to-diameter ratios widely varying from 4 to 36 were collected to determine the effect. Regardless of the diameter size or pile type, the testing cases with a length-to-diameter ratio (slenderness) below 15 had a consistent scattering along or near the theoretical usable frequency-diameter curves due to a better propagation ability. For the slender cases, the experimental points scatter far below the theoretical usable frequency-diameter curves due to more energy leakage during propagation.

Original languageEnglish
Title of host publicationStress Wave Theory and Testing Methods for Deep Foundations
Subtitle of host publication10th International Conference
EditorsPaul Bullock, Gerald Verbeek, Samuel Paikowsky, David Tara
PublisherASTM International
Pages273-285
Number of pages13
ISBN (Electronic)9780803176676
DOIs
StatePublished - 2018
Event10th International Conference on Stress Wave Theory and Testing Methods for Deep Foundations - San Diego, United States
Duration: 27 Jun 201829 Jun 2018

Publication series

NameASTM Special Technical Publication
VolumeSTP 1611
ISSN (Print)0066-0558

Conference

Conference10th International Conference on Stress Wave Theory and Testing Methods for Deep Foundations
Country/TerritoryUnited States
CitySan Diego
Period27/06/1829/06/18

Keywords

  • Guided wave theory
  • Impulse response
  • Integrity testing
  • Length-to-diameter ratio
  • One-dimensional wave theory
  • Pile
  • Usable frequency
  • Wavelength-to-diameter ratio

Fingerprint

Dive into the research topics of 'Effect of length-to-diameter ratio on the usable frequency range of impulse response testing in pile foundations'. Together they form a unique fingerprint.

Cite this