Slowness estimation from sonic logging waveforms

Kurkjian, A.; Lang, S.; Hsu, Kai

doi:10.1016/0016-7142(91)90002-t

Cited by 4 publications

(1 citation statement)

References 26 publications

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“…The acoustic or sonic wave collected in this method by a group of receivers attached to an acoustic borehole logging probes moved down the borehole to be investigated, with the sonic wave source up the receiver by a specific distance [65,66]. The analysis of the received waves is carried out using the slowness travel time [67] or the frequency domain, using the Fast Fourier Transform (FFT) logarithm [68]. The cross-hole seismic test is relatively similar to that elaborated in the downhole logging test.…”

Section: Measurement Of V Smentioning

confidence: 99%

Exploring Shear Wave Velocity—NSPT Correlations for Geotechnical Site Characterization: A Review

Abbas,

Al-Jeznawi,

Al-Janabi

et al. 2024

CivilEng

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Shear wave velocity (Vs) is a critical parameter in geophysical investigations, micro-zonation research, and site classification. In instances where conducting direct tests at specific locations is challenging due to equipment unavailability, limited space, or initial instrumentation costs, it becomes essential to estimate Vs directly, using empirical correlations for effective site characterization. The present review paper explores the correlations of Vs with the standard penetration test (SPT) for geotechnical site characterization. Vs, a critical parameter in geotechnical and seismic engineering, is integral to a wide range of projects, including foundation design and seismic hazard assessment. The current paper provides a detailed analysis of the key findings, implications for geotechnical engineering practice, and future research needs in this area. It emphasizes the importance of site-specific calibration, the impact of geological background, depth-dependent behavior, data quality control, and the integration of Vs data with other geophysical methods. The review underlines the continuous monitoring of Vs values due to potential changes over time. Addressing these insights and gaps in research contributes to the accuracy and safety of geotechnical projects, particularly in seismic-prone regions.

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