集集震後土石流二次災害危險性之評估

921地震造成中部山區多處發生坍方，崩坍的土石材料堆積於集水區內，豪雨來時極易造成土石流，本文根據國科會委託之地震後土石流二次災害之研究，對中部地區進行廣泛之現地調查，並利用土石流發生特性擬定判定土石流危險等級之方法，危險等級區分為高度、中度及低度危險，本研究中總計調查土石流危險場址148處，其中高度危險計有49處，建議列入優先治理對象，分級成果可做為相關單位處理參考，同時對於新增之坡地型土石流進行深入之研究。

關鍵字

921集集大地震；土石流；二次災害

並列摘要

Due to the extensive slope failure caused by the Chi-Chi earthquake, massive amount of deposit material posed severe threat of potential debris flow hazard. In this study field investigations were conducted to identify and inventory the potential debris flow locations in the central region of Taiwan hit by the earthquake. Models for evaluation of hazard potential and risk were developed and risk assessments of the investigated areas were performed accordingly. The debris flows were rated as with high, medium, and low risk. A total number of 148 locations were investigated, and 49 locations were rated as with high risk. It is suggested that the locations with high risk should be mitigated with highest priority and more researches are need for the newly increased slope-type debris flow.

並列關鍵字

921 Chi-Chi earthquake ； debris flow ； secondary hazard

被引用紀錄

張綸纖（2011）。利用羅吉斯迴歸法分析崩塌對土石流降雨警戒基準值之影響-以南投神木村為例〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2011.00802

劉哲欣（2009）。利用降雨及地下水水質資料進行土石流發生之監測及分析〔博士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2009.02635

鄭遠昌（2004）。地形變遷之研究∼以苗栗火炎山地區為例〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2004.01767

蔡明璋（2016）。應用雙因子存活分析於建立土石流預警臨界曲線之研究—以台灣神木地區為例〔博士論文，逢甲大學〕。華藝線上圖書館。https://doi.org/10.6341/fcu.P0155394

林美聆、洪鳳儀、賴達倫、溫惠鈺、鄭曙耀（2022）。臺灣地區的土石流潛勢溪流潛勢資料建立與應用。災害防救科技與管理學刊，11(1)，29-52。https://doi.org/10.6149/JDM.202203_11(1).0002

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集集震後土石流二次災害危險性之評估

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