Pile Length Estimation Based on Guided Waves and Periodic Analysis
Publication: Geo-Congress 2024
ABSTRACT
Estimating pile length is critical when reusing unknown foundations. In this study, we provide a novel pile length estimate approach based on guided wave theory that uses only one sensor for data collection, addressing the inaccessibility of the pile top or lateral side for sensor installation as well as the need for accurate pile length calculation. The data acquisition transducer can be mounted on the pile’s lateral or top surface. The normalized magnitude of the recorded frequency domain responses is defined. The dispersion analysis diagram of the wavenumber as a function of the normalized magnitude is then determined using the dispersion relation provided by the guided wave model. The pile length can be computed at low frequencies using the periodic analysis of the dispersion analysis diagram and the period determined from the diagram. Numerical analysis can be used to validate the suggested method’s usefulness and correctness.
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REFERENCES
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Geo-Congress 2024
Pages: 79 - 86
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Published online: Feb 22, 2024
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