| 講演要旨(和文) | | K-NET築館（MYG004）を対象に、屈折法地震探査データを用いた波形逆解析によって表層地盤の2次元S波速度構造を推定した．2次元S波速度構造の推定結果は，Amrouche et al. (2014)と同様に崖側で表土が低速度になる分布をしており，この付近で地盤増幅特性が局所的に異なる要因になっていることを確認した． |
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| | 講演要旨(英文) | | We estimated 2-D surface layers by a waveform inversion using data in seismic refraction exploration around the K-NET MYG004 station. The estimated S-wave velocity of surface soil layer was low toward a cliff side as similar to the result of Amrouche et al. (2014). We reconfirmed that the variation of near-surface S-wave velocity is one of the factors that makes amplification characteristics around this area locally different. |
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