On the Use of the H/V Spectral Ratio Method to Estimate the Fundamental Frequency of Tailings Dams

This paper analyses the feasibility of estimating the fundamental frequency of an 85 m high cycloned-sand tailings dam located in the Central-North area of Chile using the single-station H/V Spectral Ratio Method (HVSR), calculated from seismic ambient noise and earthquakes recorded by a temporal se...

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Bibliographic Details
Published in:Journal of earthquake engineering : JEE 2023-04, Vol.27 (6), p.1649-1664
Main Authors: Pastén, César, Peña, G., Comte, D., Díaz, L., Burgos, J., Rietbrock, A.
Format: Article
Language:English
Subjects:
Ambient noise
Damsites
Earthquakes
Embankments
fundamental frequency
H/V Spectral Ratio
Mathematical analysis
Methods
Mine tailings
Resonant frequencies
Seismic activity
Seismic arrays
Standard Spectral Ratio
Tailings
tailings dam
Vibration
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Summary:This paper analyses the feasibility of estimating the fundamental frequency of an 85 m high cycloned-sand tailings dam located in the Central-North area of Chile using the single-station H/V Spectral Ratio Method (HVSR), calculated from seismic ambient noise and earthquakes recorded by a temporal seismic array deployed along the embankment crest, the downstream slope, and the dam toe, directly over the foundation soil. The fundamental vibration frequencies obtained from the HVSRs show consistency with results from the Standard Spectral Ratio method (SSR) calculated between the crest and the toe using the available earthquake records, particularly in the dam central part.
ISSN:1363-2469
1559-808X
DOI:10.1080/13632469.2022.2087799