隨著社會的繁榮及經濟的發展，高速鐵路已成為現今不可或缺的交通工具，伴隨其帶來的便利與效益同時，行車安全的考量也日趨重要；尤其，台灣位處於地震帶上，頻繁的地震對於高速鐵路所帶來的安全威脅更是不可言喻。針對高鐵安全問題，本研究利用有限元素法建立一套列車-軌道-橋梁互制之模型，其中包含了線性土壤-結構互制的分析，並且以此模型來分析高速鐵路於地震侵襲下之脫軌行為。本研究利用此模型模擬今年台灣高鐵於南科附近的脫軌事件，並且呈現完整的分析結果，為了精確的模擬引致脫軌的地震行為，本研究還加入反迴旋積分法進行地表地震紀錄的轉換動作，以期待有最正確的模擬結果。由於此領域的研究內容相當繁雜，本論文僅呈現初步分析成果，後續更進一步的研究持續進行中。

The main purpose in this study is to establish a train-rail-bridge interaction model, which can be used to analyze the train derailment problem with the soil-structure interaction analysis by finite element method. Furthermore, the major simulation of the derailment event by Jiasian earthquake in south of Taiwan on March 4th, 2010 was performed. For precisely introducing the earthquake, the method of deconvoluiton was used to transform the ground seismic record from the surface to the bottom, and the absorbing boundary was used to prevent the reflection of the seismic wave. In addition, the rail irregularity is one of major reasons to produce the vibration in the moving train, so this effect cannot be ignored in the derailment analysis. Finally, the judgment of derailment dependent on the derailment coefficient, and the Europe code was used from variety of different regulations in this study. This study only presented with initial achievement because the theme about derailment problem is a tremendous subject, and the further analysis will be progressed continuously.

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