Analysis of Hualien Downhole Seismic Records

这一行动涉及台湾花莲地点的井下地震记录的分析和解释。在过去的四年中，对台湾Lotung和加州Imperial County野生动物保护区记录的地震运动的井下阵列数据进行了广泛的研究，结果确定了大量面向实际的场地和土壤动力响应特征。这些特征的识别完全基于记录的井下加速度数据。通过这些研究，形成了一套完善的综合技术系统，用于进行最先进的井下阵列数据分析。在本工程中，利用这些技术对花莲的井下地震记录进行了分析。利用这些记录确定了现场低幅横波速度剖面，以及横波传播；土壤动力响应特性。使用的主要分析工具是优化程序与站点扩增代码相结合。重点放在实际分析方法的定义和面向设计的程序。＊＊＊

9527375 Elgamal This action concerns the analysis and interpretation of downhole seismic records from the Hualien site in Taiwan. Over the past four years, extensive studies of downhole array data from recorded earthquake motions at Lotung, Taiwan, and at the Wildlife Refuge site, Imperial County, CA, have resulted in the identification of a great deal of practically-oriented site and soil dynamic response characteristics. The identification of these characteristics is entirely based on the recorded downhole acceleration data. Through these studies, a system of well developed and integrated techniques has evolved for conducting state-of-the-art analyses of downhole array data. In this project, these techniques are used to analyze the recorded downhole Hualien seismic records. These records are used to identify the site low-amplitude shear wave velocity profile, and shear wave propagation; also the soil dynamic response properties. The primary analysis tools used are optimization routines combined with site amplification codes. Emphasis is placed on the definition of practical analysis methodologies, and design-oriented procedures. ***