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溢洪道

溢洪道(英語:spillway)係指水壩的構造物,功能在於排除宣洩超過水庫容量之多餘洪水,防止溢頂而破壞壩體,以確保水壩的安全[1][2]。依照溢流洩方式之不同,溢洪道可區分為自由溢流式溢洪道(overflow spillway)及閘門控制式溢洪道[2];又依照洩水構造物形式,可分為隧道式溢洪道、陡槽式溢洪道(chute spillway)、鐘口型溢洪道(bell-mouth spillway 或 morning glory spillway,又稱為喇叭形溢洪道)、側槽溢洪道(side channel spillway)、管流式溢洪道(pipe spillway)、虹吸式溢洪道(siphon spillway)、壩堰式溢洪道等[1]。溢洪道並不一定建造在壩身建築物上,亦可在壩址附近另行興建溢洪道,例如側槽溢洪道即離開壩身[1]

範例

參考資料

  1. ^ 1.0 1.1 1.2 毛壽彭. 水利工程學. 臺北市: 大中國出版. 1991. ISBN 9575210115. 
  2. ^ 2.0 2.1 溢洪道之定義. 經濟部水利署水庫主題網. [2013-12-31]. (原始内容存档于2013年12月31日) (中文(臺灣)). 
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溢洪道
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