| 英文摘要 |
This research project is a part of a series of studies that are being guided by the National Center for Research on Earthquake Engineering(NCREE) regarding the highly technological science parks of Taiwan. The research’s objective is to obtain the vibration characteristic of the selected site, to understand the activities of surrounding faults, and to provide input parameters for the earthquake hazard mitigation programs. Also, the results can be integrated with other projects to form a comprehensive research report for the government’s decision making. Three major methods were used. First of all, a very dense microtremor survey with 152 measurements has been performed for obtaining the dominant resonance frequencies throughout Taichung and Huwei Science Parks. Second, the seismic activities around the Central Taiwan Science Park were monitored by setting up a broadband seismic network which consists of eight broadband seismometers to gather enough data in succeeding years and to understand the current status of the nearby Chelunpu and Chuko faults. Then, a statistical method was used to produce a Shake map for the Taichung Science Park covering a certain time frame. All of the results are hoped to be utilized to analyze and improve the methodology of earthquake hazard mitigation program. Furthermore, nine TSMIP(Taiwan Strong Motion Instrumentation Program) stations have been choosen to investigate the shear velocity structures of deep soil layers using micro-tremor array methods. The frequency-wave number analysis was used to identify the dispersion curve of soil layers, and the genetic algorithm search method was applied to obtain velocity structures of deep layers by an inversion process. The results from the field tests were found reasonably well. |
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