Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/72297
標題: 平地水筒模式於沿海地區的應用
作者: 陳榮松
劉昭宏
關鍵字: 堤防決口;平地水筒模式;自動排水閘門
出版社: 國立中興大學工學院;Airiti Press Inc.
Project: 興大工程學刊, Volume 11, Issue 1, Page(s) 45-52.
摘要: 
The purpose of the study is to simulate drown model on complete process operated by
diffusive tank model when low-lying region near seashore incur tidal bore poured into forcefully from
levee break rupture. Focus on the respect of the levee break, in order to analysis the influence of
drown region and drown depth in several conditions, the study design different width of the rupture
and is adapted to the revolution of automatic drainage floodgate. Because diffusive tank model is more
simplified from the model of unsteady non-uniform flow, we can get the result with good recurrence
by using lesser labor and computing time in the runoff analysis simulation. The analysis subject of the
study is a farm land consolidation region near seashore with the area of 845ha. The simulative result
shows maximum flow rate 7.4cms of automatic drainage floodgate with 9m height and 3m wide on the
width 2m of the rupture when storm come, Agricultural low lying region near seashore poured into sea
water from the levee break rupture, rising tidal bore 1.85m stage outside of levee. And maximum
submergible area inside basin is 19.159ha on the width 10m of the rupture at 56□ hour.

本研究主要目的為,當強大的暴湖水位由堤防決口處倒灌入沿海低平區域時,由
平地水筒模式模擬該區域淹退水之完整歷程。研究中針對堤防潰決方面,設計了不同決口
寬度並配合自動排水閘門的運作以分析各條件下對淹水面積、淹水深的影響。由於一般平
地水筒模式在低平地排水模擬上,較變量變速流模式簡化,且模擬效果相當良好,故可十
分快速地求解出結果。本研究以面積845公頃之沿海農場重劃區為分析對象,模擬在堤外暴
潮水位高漲至1.85m,正逢暴雨來臨時,海水由堤防決口灌入沿海農業低窪地區之情形。結
果顯示,當決口寬2m時,閘門高寬分別為9m與3m之自動排水閘門排洪流量(7.4cms)最大;
而當時刻第56小時,決口寬10m時,流域的淹水面積最大達19.159公頃。
URI: http://hdl.handle.net/11455/72297
ISSN: 1017-4397
Appears in Collections:第11卷 第1期
工學院

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