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首页> 外文会议>World conference on earthquake engineering;WCEE >APPLICABILITY OF MICROTREMOR H/V METHOD FOR KIK-NETSTRONG MOTION OBSERVTION SITES AND NOBI PLAIN
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APPLICABILITY OF MICROTREMOR H/V METHOD FOR KIK-NETSTRONG MOTION OBSERVTION SITES AND NOBI PLAIN

机译：微距H / V方法在KIK-NETSTRONG运动观测站点和NOBI平原上的适用性

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摘要

In this research, we examined the applicability of microtremor H/V method by earthquake observationdata recorded at the strong earthquake motion observation networks of KiK-net, K-net and Nobi Plainwhich have been established in Japan in recent years. We observed the microtremors at ground surface oftotal 221 sites where the S wave velocity of base rock is more than 1500m/s, and compared themicroteremor H/V spectrum ratio with that of earthquake data. As the result of examination, thefollowings were clarified. A clear predominant peak appears at a high rate in microtremor H/V. Themicrotremor H/V spectrum ratio is very similar not only to that of earthquake record on the groundsurface, but also to several spectrum ratios of earthquake motions between surface and bedrock. Thisimplies the microtremor H/V reflects the response characteristics based on the both of horizontal andvertical motions in the surface layer. Then, we tried to propose an engineering method in presuming thehorizontal incident wave response characteristics of surface layer by using the relation betweenmicrotremor H/V and earthquake observation data.
机译：在这项研究中，我们通过近几年在日本建立的KiK-net，K-net和Nobi Plain的强地震运动观测网络中记录的地震观测数据，检验了微震H / V方法的适用性。我们观察了总共221个基岩S波速度超过1500m / s的地面的微震，并比较了微震的H / V频谱比与地震数据。检查结果明确了以下内容。在微震H / V中，高频率出现清晰的主要峰。微震的H / V谱比不仅与地表地震记录的谱比非常相似，而且与地表和基岩之间地震运动的几个谱比非常相似。这意味着微震H / V反映了基于表层中水平和垂直运动的响应特性。然后，我们尝试利用微震H / V与地震观测数据之间的关系，提出一种推测表层水平入射波响应特性的工程方法。

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