RU-G-0227
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Seismic Microzoning Method with using procedures by spectrum ratio H/V
2021-09-03
1967

Work out Seismic Microzoning Method, who may be use in engineering seismology for measuring intensity of seismic waves. This Method support by procedures spectrum ratio HVSR (Horizontal to Vertical Spectral Ratio. Nogoshi & Igarashi, 1971). The authors this work out proposes use procedures spectrum ratio HVSR for novel Seismic Microzoning Method (Fig. 1). From seismogram by microseismic tremors, calculate resulting spectrums horizontals components H and spectrums vertical component V. After calculate transfer function H/V, determined maximum of gain factor by cross-cut vibrations on the exploration area [(H⁄V)_max ]_i and on the weighted average (calibration) area  [(H⁄V)_max ]_0. Then calculate increase by seismic intensity (Рис. 2.):

∆I=2lg [(H⁄V)_max ]_i⁄[(H⁄V)_max ]_0 .

As a result, using novel Seismic Microzoning Method step up productivity of labour, accuracy and stability calculate ΔI.


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  • Project
    Seismic Microzoning Method with using procedures by spectrum ratio H/V
  • CODE
    RU-G-0227
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    Other