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首页> 外文期刊>Bulletin of the Seismological Society of America >Detailed evaluation of site-response estimation methods across and along the sedimentary valley of Volvi (EURO-SEISTEST)
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Detailed evaluation of site-response estimation methods across and along the sedimentary valley of Volvi (EURO-SEISTEST)

机译：横跨和沿沃尔维沉积山谷的场地响应估算方法的详细评估（EURO-SEISTEST）

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摘要

Using records from the EURO-SEISTEST area near Thessaloniki (Greece), we studied empirically the amplification effects of a sedimentary valley. One of the main advantages of this site is the very detailed knowledge of the near-subsurface structure due to exhaustive geophysical and geotechnical measurements and data analyses (Jongmans er al., 1998). The uniqueness of the seismological data set is the very dense network: 31 stations were installed perpendicular and parallel to the valley axis, with minimum interstation distances of 250 m. The mean amplifications along both axes, estimated from 13 local events, were imaged using the traditional spectral ratio technique, Variations of the mean amplifications due to the choice of different data subsets were tested by the use of up to 89 local events, supplemented by four teleseismic events offering good low-frequency resolution. Results obtained using the traditional spectral ratio technique were compared with results from a generalized inversion technique, the H/V ratio technique, a coda wave technique, and Nakamura's technique, Advantages and disadvantages of each method are outlined, especially from a practical point of view. [References: 29]
机译：我们使用塞萨洛尼基（希腊）附近的EURO-SEISTEST地区的记录，通过经验研究了沉积谷的放大效应。该站点的主要优势之一是由于详尽的地球物理和岩土测量以及数据分析，可以非常详细地了解近地下结构（Jongmans等，1998）。地震数据集的唯一性是非常密集的网络：垂直和平行于谷轴安装了31个站，站之间的最小距离为250 m。使用传统的光谱比技术对从13个局部事件估计的沿两个轴的平均扩增进行成像，通过使用多达89个局部事件来测试由于选择了不同数据子集而引起的平均扩增的变化。地震事件提供良好的低频分辨率。将使用传统频谱比技术获得的结果与广义反演技术，H / V比技术，尾波技术和Nakamura技术的结果进行比较，概述了每种方法的优缺点，尤其是从实用角度出发。 [参考：29]

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