| 唐山响堂三维场地影响观测台阵 |
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| 引用本文： | 谢礼立,李沙白.唐山响堂三维场地影响观测台阵[J].地震工程与工程振动,1999,19(2):1-8. |
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| 作者姓名： | 谢礼立 李沙白 |
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| 作者单位： | [1]中国地震局工程力学研究所 [2]北京市地震局 |
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| 基金项目： | 中国地震局"八五"重点课题!85-01-04-03 |
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| 摘 要： | １９９４年７月中国地震局工程力学研究所在唐山余震区响堂镇建成了我国第一个三维场地影响观测台阵。该台阵目前有四个测点,分别布设在基岩地表、土层地表、地下１７ｍ和地下３２ｍ处。它安装了分辨率为１６位的井下数字观测系统,主机和从机同步运行,系统时钟采用Ｏｍｅｇａ导航信号自动校对（精度１ｍｓ）,地震数据采用固态方式（ＣＭＯＳ）存储,每个测点均布设一组 量力平衡式加速度计。该台阵自投入运行至１９９７年１２月
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| 关 键 词： | 三维台阵 地震场地影响 井下强震记录 地震观测 |
A three dimensional array for site effects on strong ground motion |
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| XIE Li-li, LI Sha-bai, ZHANG Wen-bo.A three dimensional array for site effects on strong ground motion[J].Earthquake Engineering and Engineering Vibration,1999,19(2):1-8. |
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| Authors: | XIE Li-li LI Sha-bai ZHANG Wen-bo |
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| Abstract: | An experimental three dimensional strong-motion array was deployed in 1994 at the Xiangtang Town in the Tangshan City where a destructive earthquake of M7.8 occurred in 1976 and completely destroyed the whole city. This array was designed to study the local soil effects on seismic ground motion. It composed of five digital strong-motion accelerographs with two on the surface rock site and other three on soil site with different depths in the boreholes.Among these five digital instruments, one was Japanese Model of CV-90lVR and the others including the down-hole system were all purchased from the Kinemetrics Ltd. of the United States. Installation of this local array was completed by the end of July 1994. Since then a number of strong-motion accelerograms were well recorded from sixty earthquakes of magnitudes ML1.5 to ML5.9 and the maximum peak ground acceleration reached up to 60cm/sec/sec. |
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| Keywords: | three-dimensional strong-motion array local site effects on ground motion do wnhole strong-motion data |
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