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Seismic characterization of rigid sites in the ITACA database by ambient vibration monitoring and geological surveys

机译:通过环境振动监测和地质调查对ITACA数据库中的刚性站点进行地震表征

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摘要

The problem of seismic characterization of rock-mass or stiff-soil outcrops by the use of passive seismic prospecting techniques is discussed. Difficulties in the application of this kind of procedure in the presence of rugged morphology, high surface wave velocities and low ambient vibration powers, typical of stiff-soil/rock-mass sites are examined. A methodology to face these problems is here proposed, which is based on the strict synergy of detailed geologic surveys and application of robust seismic prospecting techniques, jointly considering single-station and multi-station tools. The application of this approach for the characterization of a number of sites belonging to the Italian Accelerometric Network is described, focusing on two representative case histories.
机译:讨论了利用被动地震勘探技术对岩石或硬土露头进行地震表征的问题。研究了存在粗糙形态,高表面波速度和低环境振动功率(典型的是刚性土壤/岩体场)的情况下应用此类方法的困难。本文提出了一种解决这些问题的方法,该方法基于详细地质调查的严格协同作用以及强大的地震勘探技术的应用,同时考虑了单站仪和多站仪。描述了此方法在表征意大利加速度计网络中的多个站点上的应用,重点介绍了两个典型的案例历史。

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