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Abstract

Summary

The well-known non-uniqueness inversion problems of dispersion curves as well as the reduced resolution at higher depths could be improved by performing a combined analysis of data sets of different types. In this study, Nakamura’s technique or HVSR technique was applied to several ambient vibration recordings performed at the surface of alluvium deposits, in order to estimate their fundamental frequency. The shear wave velocity profiles of the soil of the studied sites were previously determined using the active MASW method. The theoretical HVSR associated to each MASW profile was determined using the program ModelHVSR and compared to the experimental HVSR curves. This program was also used for the inversion of the experimental H/V curve, in order to improve the resolution of the deepest part of soil profile and identify the depth of the bedrock. Furthermore, the HVSR deduced from surface waves approximation was also computed for each profile to evaluate the reliability of the hypothesis that surface waves dominates the wavefield.

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/content/papers/10.3997/2214-4609.20141957
2014-09-08
2024-04-25

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References

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20141957
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Combined Analysis of Ambient Vibration HVSR and Active MASW Method
Conference Proceedings 2014, 1 (2014); https://doi.org/10.3997/2214-4609.20141957
/content/papers/10.3997/2214-4609.20141957
/content/papers/10.3997/2214-4609.20141957
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