基于上西里西亚煤盆地环境地震噪声记录的共振频率-厚度关系的确定

Contemporary Trends in Geoscience Pub Date : 2014-09-01 DOI:10.2478/ctg-2014-0021

M. Mendecki, B. Bieta, Mateusz Mycka

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引用次数: 9

摘要

摘要本文采用水平-垂直谱比(HVSR)方法，结合地震资料，对共振频率-厚度关系进行了评价。利用HVSR方法从地震噪声记录中估计了场地效应的参数:放大和共振频率。对波兰上西里西亚煤盆地(UBSC)的交通、工业、燃煤电厂等人为噪声源产生的地震噪声进行了研究。调查点位于索斯诺维茨、拜托姆和乔尔佐地球科学学院附近。根据Albarello的统计检验，观测到的H/V最大值被证实或拒绝。将共振频率与地震调查获得的可用软层厚度进行比较(Mendecki 2012)。最后，估计的UBSC区域的共振频率-厚度关系与其他作者得到的幂函数系数非常相似

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Determination of the resonance frequency – thickness relation based on the ambient seismic noise records from Upper Silesia Coal Basin

Abstract In this paper the Horizontal-to-Vertical Spectral Ratio (HVSR) method and seismic data were applied to evaluate the resonance frequency - thickness relation. The HVSR method was used to estimate the parameters of site effects: amplification and resonance frequency from seismic noise records. The seismic noise was generated by artificial source occurring in Upper Silesia Coal Basin (UBSC), Poland, such as: traffic, industry, coal plants etc. The survey points were located near the Faculty of Earth Sciences in Sosnowiec, Bytom and Chorzow. Based on Albarello’s statistical test the observed H/V maxima was confirmed or rejected. Resonance frequencies were compared with available thicknesses of soft layer obtained by seismic survey (Mendecki 2012). Finally, the estimated resonance frequency - thickness relation for UBSC area showed quite similar power function coefficients as those obtained by other authors

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Contemporary Trends in Geoscience

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