Title | Approximate formula of peak frequency of H/V ratio curve in multilayered model and its use in H/V ratio technique |

Publication Type | Journal Article |

Year of Publication | 2015 |

Authors | Tuan, TThanh, Vinh, PChi, Malischewsky, P, Aoudia, A |

Journal | Pure and Applied Geophysics |

Volume | 173 |

Issue | 2 |

Pagination | 487-498 |

Abstract | The main peak frequency of the Horizontal to Vertical (H/V) ratio curve is the key factor used in the H/V ratio technique since the resonace frequency of the transmission response of the site is estimated from this frequency. However, there has not been explicit formula of the main peak frequency of the H/V ration curve in multiplayered models. In the present study, an approximate explicit equation of the peak frequency of H/V ratio is devired of the multiplayered models of high impedance contrast between the half-space and surface layers. This approximate equation is then generalized for model of an functionally graded material (FGM) layer over half-space. Then, the approximate equation is used to obtain an explicit approxiamte formula of the main peak frequency of H/V ration curve. The principle formula of H/V ratio technique is used along with the obtained approximate formula of the main peak frequency to formulate a new average formula of the shear-wave velocity of a composite layer composed |

DOI | 10.1007/s00024-015-1098-6 |