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系統識別號 U0026-2708201915580600
論文名稱(中文) 利用低衝擊開發設施設置提升社區韌性之研究-以台南市東區虎尾寮為例
論文名稱(英文) Improvement on Water Resilience Due to Low-Impact-Development Facilities - a Case Study in Huweiliao Area, Tainan City, Taiwan
校院名稱 成功大學
系所名稱(中) 水利及海洋工程學系碩士在職專班
系所名稱(英) Department of Hydraulics & Ocean Engineering (on the job class)
學年度 107
學期 2
出版年 108
研究生(中文) 游仲延
研究生(英文) Chung-Yen Yu
學號 N87071026
學位類別 碩士
語文別 中文
論文頁數 67頁
口試委員 口試委員-賴建信
口試委員-陳主惠
口試委員-徐國錦
口試委員-李振誥
口試委員-廖宏儒
指導教授-羅偉誠
中文關鍵字 低衝擊開發  SWMM模型  雨水下水道保護標準 
英文關鍵字 Low Impact Development  SWMM  Storm Sewer Protection Standard 
學科別分類
中文摘要 都市排水管網系統雖可有效將暴雨產生之逕流快速排出,然近年來因氣候環境變遷,極端降雨事件發生趨於頻繁,暴雨產生之逕流超出既有雨水下水道系統的保護標準,使淹水事件層出不窮。提升既有雨水下水道保護標準除受限於建置空間、工期長且施工期間造成的不便之外,設施造價更是昂貴。低衝擊開發以源頭式治水概念,利用較接近自然之工法,將小規模且分散式的降雨管理設施設置於都市內,透過不同低衝擊開發設施增加入滲及貯水能力,以達到延緩洪峰到達時間及削減洪峰流量的效果。
臺灣近年來雖已開始推動低衝擊開發之治水工法,相關研究亦開始著重低衝擊開發所帶來之效益,然利用小規模分散式系統來增加入滲而達到減緩洪峰之系統性管理尚未發展明確。本研究將選用並設置不同低衝擊開發設施,以源頭式且分散化之管理模組應用於實際層面進行研究。
研究區域則選定臺南市東區文聖里、裕聖里及仁德區仁德里北側。該區域早期因土地開發方式配合重劃區整地作業,因此排水設施採取沿途跌降方式將高低地逕流混流。加上同時面對外水與下游所存在逆坡段的問題,使研究區域下游形成易積淹水之區域,多年來的積淹水事件不斷。
本研究選擇美國環保署(U.S. EPA)開發之SWMM (Storm Water Management Model)暴雨逕流管理模式進行模擬及評估,並透過SWMM模型內低衝擊開發模組模擬研究區域設置低衝擊開發設施後可帶來之減洪效益。本研究模擬研究區內設置雨水桶、可滲透鋪面及生態滯留單元,並以10年重現期90分鐘降雨延時進行模擬。經SWMM模擬結果顯示,10年重現期短延時降雨情況下,可減少45.1%至66.5%之淹水體積,其中,以雨水桶效果最佳,雨水桶設置後,逆坡節點S3淹水體積減少66.5%降低為15,003 m3,洪峰流量減少61.9%降低為7.212 cms。
綜合上述模擬結果,三種低衝擊開發設施設置皆可達到減洪效果,在不改變既有雨水下水道系統之情況,除逆坡節點S3之外,研究區域在10年重現期降雨下,可因設置地衝擊開發設施達到無淹水之情況,因研究區域屬已開發住宅區,且排水系統下游逆坡處位於交通樞紐不易改善,故建議使用雨水桶做為低衝擊開發設施設置規劃,模擬結果顯示研究區域在設置低衝擊開發設施的情形下,將可提高研究區域內的抗洪能力。
英文摘要 Recently, extreme rainfall events tend to occur more frequently. Extreme rainfall events exceed the design criteria of drainage system and result in flooding. Due to limited city space and budget, Low Impact Development (LID) approach dispersedly distributes small rainfall management facilities in the space to delay and reduce the peak flow of the flood.
The study area is Huweiliao Area in Tainan City, Taiwan where is located at low elevation area with problems of high external water level.
This study adopts Storm Water Management Model (SWMM) for simulation and evaluation. LID control components, such as rain barrels, permeable pavement, and bioretention cell (or called rain garden), are applied to the studied area. We select a 10-year-90-minutes flood event for the evaluation. The results show that LID components can reduce 45.1% to 66.5% of inundation volume. The rain barrel units have the best inundation reduction effect.
Without capacity expansion of the existing municipal drainage system, the LID controls can eliminate the flooding situation under the rainfall event of 10-year recurrence period.
論文目次 摘要I
ABSTRACTIII
誌謝X
目錄XI
表目錄XIII
圖目錄XIV
第一章 緒論1
1-1 研究動機1
1-2 研究目的2
1-3 論文架構2
第二章 文獻回顧3
2-1 低衝擊開發3
2-2 水文模式5
2-2-1 水文模式介紹5
2-2-2 水文模式選擇及應用9
第三章 研究方法11
3-1 SWMM暴雨逕流管理模式13
3-1-1 常用模擬系統建置功能14
3-1-2 SWMM 5.1版新設LID模組18
3-2 LID設施19
3-2-1 常用LID設施19
3-2-2 本研究選用LID設施31
3-3 研究區域32
3-3-1 研究區域概述32
3-3-2 氣象資料34
3-3-3 土地利用方式36
3-3-4 選用之水文資料37
3-3-5 現況問題44
3-4 模型建置與流程46
3-4-1 現況SWMM模型建置46
3-4-2 SWMM模型中LID模組建置52
3-4-3 外水位設置53
3-4-4 各設計模擬情境說明53
第四章 結果與討論56
4-1 既有雨水下水道系統遇10年重現期短延時降雨56
4-2 10年重現期短延時降雨各LID方案設置分析59
第五章 結論與建議63
5-1 結論63
5-2 建議64
第六章 參考文獻65
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