Journal
GEOTECHNIQUE
Volume 68, Issue 4, Pages 358-363Publisher
ICE PUBLISHING
DOI: 10.1680/jgeot.16.T.040
Keywords
in situ testing; piles & piling; waves & wave loading
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Funding
- National Natural Science Foundation of China [51622803, 51420105013]
- Fundamental Research Funds for the Central Universities [106112017CDJXY200002, 106112016CDJXZ208821]
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In this note the concept of discretising the pile into virtual parts is introduced in order to derive an analytical solution that describes three-dimensional propagation of waves in piles during low-strain integrity tests, considering both vertical and radial pile displacements. The effect of transverse wave propagation on the results is quantified by comparing the proposed solution against a previously published method in which only vertical displacement was considered, results of dynamic numerical analyses, as well as the classical one-dimensional solution. Using the obtained waveforms, an attempt is made to identify and describe the mechanisms of three-dimensional propagation of longitudinal waves in piles, and how these may affect the interpretation of low-strain integrity tests.
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