Evaluation of thickness and surface layer S-wave velocity of the two layered subsurface model by dispersion curve and H/V spectrum

Moeko Koie, Toshiro Maeda

Research output: Contribution to journalArticlepeer-review

Abstract

Subsurface structure model is constructed by simulating dispersion curves usually by GA with reference data such as PS logging. When the reference data is not available or micro-tremor array radius is inadequate for the wavelength of interest, method to infer a simpler subsurface model such as a two-layered model is desirable. We propose the method to deduce surface layer thickness and shear wave velocity of the model by resorting to quarter wavelength theory and the concept of wavelength-thickness ratio. The method itself and the wavelength-thickness ratio is tested by PS logging data at K-NET and KiK-net observation sites.

Original languageEnglish
Pages (from-to)975-978
Number of pages4
JournalAIJ Journal of Technology and Design
Volume24
Issue number58
DOIs
Publication statusPublished - 2018 Oct

Keywords

  • Dispersion curve
  • H/V spectrum
  • Microtremor array observation
  • Sub-surface structure

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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