1887

Abstract

Summary

Surface wave dispersion curves are inverted to obtain 1D local VS model. The inversion is based on a layered model and the result is non-unique. A linear relationship can be found between weighted average S-wave velocity at different depths and surface-wave phase velocity at different wavelengths. This relationship, if known for a category of models, can be used to directly estimate an approximated velocity profile from the dispersion curve without the need for inverting. We show on a synthetic case that the error between estimated and true velocity is of the same order of that obtained by inversion.

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/content/papers/10.3997/2214-4609.201413714
2015-09-06
2024-04-24
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References

  1. Abbiss, C.P.
    [1981] Shear wave measurements of the elasticity of the ground. Geotechnique, 31, 91–104.
    [Google Scholar]
  2. Brown, L.T., J.G.Diehl, R.L.Nigbor
    [2000] A simplified procedure to measure average shear-wave velocity to a depth of 30 meters (VS30). 12th world conference on on Earthquake Engineering, New Zealand Society for Earthquake Engineering, Auckland, New Zealand.
    [Google Scholar]
  3. Comina, C., S.Foti, D.Boiero, L.V.Socco
    [2011] Reliability of V S, 30 evaluation from Surface Waves Tests. Journal of Geotechnical and Geoenvironmental Engineering, 137(6), 579–588, DOI: 10.1061/(ASCE)GT.1943‑5606.0000452.
    https://doi.org/10.1061/(ASCE)GT.1943-5606.0000452 [Google Scholar]
  4. Foti, S., C.Comina, D.Boiero, L.V.SOCCO
    [2009] Non-uniqueness in surface-wave inversion and consequences on seismic site response analyses. Soil Dynamics and Earthquake Engineering, 29, 982–993, DOI:10.1016/j.soildyn.2008.11.004.
    https://doi.org/10.1016/j.soildyn.2008.11.004 [Google Scholar]
  5. Haney, M., R.Miller
    [2013] Introduction to this special section: Non reflection seismic and inversion of surface waves and guided waves. The Leading Edge, 32, 610–611.
    [Google Scholar]
  6. Park, C.B., R.D.Miller, and J.Xia
    [1999a] Multichannel analysis of surface waves. Geophysics, 64, 800–808.
    [Google Scholar]
  7. Socco, L.V., S.Foti, D.Boiero
    [2010] Surface wave analysis for building near surface velocity models: established approaches and new perspectives. Geophysics, 75(5), 75A83–75A102.
    [Google Scholar]
  8. Socco, L.V., G.Mabyalaht, and C.Comina
    [2015] Robust static estimation from surface wave data. SEG Annual Meeting Expanded Abstracts, submitted.
    [Google Scholar]
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