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土石流危險度之評估與預測

ASSESSMENT AND PREDICTION OF DEBRIS FLOW HAZARDS

摘要


土石流常發生於集水區上游坡度較陡的地方,其發生條件及受災大小與該區域內崩積物厚度、地質成份、水文特性、地貌及地形特性等因子有密切之關係。本文著重於探討暴雨型土石流危險度之評估及預測與前述因子之關係。以溪床坡度、有效集水區面積、及降雨特性等指標,討論土石流發生之可能性;並描述如何推估土石流在山谷之流動距離及在沖積扇之擴散範圍。

關鍵字

土石流 降雨量 流動距離

並列摘要


Debris flows are usually initiated on hillsides or in channels on the upstream of a watershed. Initiation criteria and dimension of debris flows are related with the amount of colluvial soilds, and geologic, topographic and hydrologic characteristics of hillsides where debris flows occur and travel down through. The relationships between the occurrance of debris flow and the topographic slope, watershed area and rainfall characteristics are reviewed in order to discuss the assessment and prediction of debris flow hazards. The potential travel distance of debris flow in a channel and the potential travel distance, spreading width, and spreading angle in an alluvial fan are also discussed.

並列關鍵字

Debris Flows Rainfall Travel Distance

被引用紀錄


林正道(2003)。土石流危險度之模糊迴歸分析和綜合評判〔碩士論文,中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu200300231
紀均澤(2009)。應用風險評估在土石流災害之研究〔碩士論文,中原大學〕。華藝線上圖書館。https://doi.org/10.6840/CYCU.2009.00846
王宣惠(2009)。花蓮地區土砂潛勢災害風險評估模式建置之研究〔碩士論文,長榮大學〕。華藝線上圖書館。https://doi.org/10.6833/CJCU.2009.00115
方啟仲(2015)。時域反射探測儀於藤枝林道邊坡監測之應用〔碩士論文,國立屏東科技大學〕。華藝線上圖書館。https://doi.org/10.6346/NPUST.2015.00264
周欽源(2015)。老佛野溪土砂災害整治效益探討〔碩士論文,國立屏東科技大學〕。華藝線上圖書館。https://doi.org/10.6346/NPUST.2015.00263

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