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首页> 外文期刊>Acta geodynamica et geomaterialia >EXPERIMENTAL MEASUREMENT AT THE SEISMIC STATION OSTRAVA-KRASNE POLE (OKC): PRELIMINARY RESULTS AND REMARKS ON SITE EFFECT AT THE STUDIED LOCALITY
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EXPERIMENTAL MEASUREMENT AT THE SEISMIC STATION OSTRAVA-KRASNE POLE (OKC): PRELIMINARY RESULTS AND REMARKS ON SITE EFFECT AT THE STUDIED LOCALITY

机译:奥斯特拉瓦-克拉斯涅柱(OKC)地震台站的实验测量:初步研究结果和现场所在地的评论

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摘要

This paper presents some preliminary results and remarks on site effect at the locality of the seismic station Ostrava-Krasne Pole (OKC) which is part of the Czech regional seismological network. Short-term seismological measurements were realized simultaneously at two sites with different geological conditions using two identical seismic apparatuses GAIA Vistec and seismometers Lennartz LE3D/5s within the frequency range of 0.2 - 50 Hz. Station "ST1" located in an experimental gallery represents a rock site formed by Carboniferous layers, while station "ST2" situated in a seismic cellar represents soil site with Quaternary sediments whose thickness amounts to roughly 16.5 m. Seismic events and ambient noise recorded at stations ST1 and ST2 are analysed by three different spectral ratio methods - SSR, HVSR and HVNR and determined frequencies and amplifications are then compared. Analysed data set includes mainly mining induced seismic events from the Czech Republic (Ostrava-Karvina Coalfield) and mining induced seismic events from the Poland (Upper Silesian Coal Basin and Lubin).
机译:本文介绍了一些初步结果,并指出了位于捷克区域地震网络一部分的俄斯特拉发-克拉斯涅柱(OKC)地震台站的现场效应。使用两个相同的地震仪器GAIA Vistec和地震仪Lennartz LE3D / 5s在0.2-50 Hz的频率范围内,在两个具有不同地质条件的地点同时进行了短期地震测量。位于实验画廊中的站点“ ST1”代表由石炭纪层形成的岩石站点,而位于地震地窖中的站点“ ST2”代表具有第四纪沉积物的土壤站点,其厚度约为16.5 m。通过三种不同的频谱比率方法(SSR,HVSR和HVNR)分析在ST1和ST2站记录的地震事件和环境噪声,然后比较确定的频率和放大倍数。分析数据集主要包括来自捷克共和国(俄斯特拉发-卡尔维纳煤田)的诱发地震事件和来自波兰(西里西亚上煤盆地和鲁宾)的诱发地震事件。

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