On the Use of the H/V Spectral Ratio Method to Estimate the Fundamental Frequency of Tailings Dams. Issue 6 (26th April 2023)

• Record Type: Journal Article
• Authors: Pastén, César; Peña, G.; Comte, D.; Díaz, L.; Burgos, J.; Rietbrock, A.
• Is Part Of: Journal of earthquake engineering. Volume 27:Issue 6(2023)
• Page Start: 1649
• Page End: 1664
• Publication Date: 2023-04-26
• Subjects: H/V Spectral Ratio -- Standard Spectral Ratio -- tailings dam -- fundamental frequency; Earthquake engineering -- Periodicals; 624.1762
• DOI: 10.1080/13632469.2022.2087799
• Languages: English
• ISSNs: 1363-2469

Abstract

ABSTRACT: 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.