首页> 外文期刊>Journal of Earthquake Engineering >SEISMIC MICROZONATION AND SITE EFFECTS AT AL HOCEIMA CITY, MOROCCO
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SEISMIC MICROZONATION AND SITE EFFECTS AT AL HOCEIMA CITY, MOROCCO

机译:摩洛哥艾尔霍西马市的地震微区化和场地效应

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摘要

Measurements of background noise at Al Hoceima city and its extension zones allowed us to elaborate a seismic microzonation map. The analysis of this map shows existing relationships between the observed dominant periods and the local geological conditions. In particular, a strong correlation between the dominant periods and the topography is apparent; indeed, we find larger dominant periods in areas with higher topography such as in the Ras El Abed sector to the north of the city and in the area of Cala Bonita, south of the city. Furthermore, the field work conducted in the region revealed that the karstic phenomenon is well developed in the Ras El Abed sector, and affects the dominant periods and a hence the site response.
机译:对Al Hoceima市及其扩展区的背景噪声的测量使我们能够绘制出地震微区划图。该图的分析显示了观测到的主导时期与当地地质条件之间的现有关系。特别是,显性周期与地形之间有很强的相关性。实际上,我们在地形较高的地区(例如,城市北部的Ras El Abed区域和城市南部的Cala Bonita地区)发现了较大的主导时期。此外,在该地区进行的野外工作表明,岩溶现象在拉斯阿贝德地区十分发达,并影响了主导时期并因此影响了场地响应。

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