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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/88168

    Title: 分洪工程水工模型試驗
    Other Titles: Hydraulic model test for division system
    Authors: 羅欽隆;Lo, Chin-Lung
    Contributors: 淡江大學水資源及環境工程學系碩士班
    Keywords: 分洪工程;寬頂堰;溢流堰;能量損失係數;水工模型試驗;Flood diversion;Broad-crested weir;Overflow spillway;Energy loss coefficient;Hydraulic model test
    Date: 2013
    Issue Date: 2013-04-13 12:03:57 (UTC+8)
    Abstract: 本研究主要針對磺港溪分洪工程系統進行水工模型試驗。水工模型分為三座,模型A目的在於瞭解分洪工程完工後之分流流量及分洪效益其中包括以六種流量下探討分洪工程之靜水池分洪流量、靜水池水理現象,模型B及C亦於六種流量下瞭解各局部束縮漸變能量損失及其排洪效益。
    This study focuses on hydraulic model test on the flood diversion project of Hung-Kang Creek. There are three hydraulic engineering models. The objective of Model A is to understand, at the diversion project’s completion, the diverted flow rate and flood diversion efficiency, including an analysis of the stilling basin’s diverted flow rate and hydrological phenomena under six flow rates. Models B and C also analyze energy loss at each of the local constriction transitions as well as its flood diversion benefit.
    The modeling test result shows that (1) if the ratio of water depth to water level at the stilling basin upstream of the broad-crested weir is greater than 0.17, the overflow outlet of the broad-crested weir will not be under critical flow conditions; and (2) when the Hung-Kang Creek’s flow rate is at 120.00 cms, the pressure box culvert’s diversion rate may be increased to 11.58 cms by slightly improving local constriction transition sections. Furthermore, it is determined that the flow rate of pressure box culvert increases with Hung-Kang Creek’s flow rate provided the downstream Keelung River’s water level remains constant. However, if the upstream inflow rate of Hung-Kang Creek remains constant, the higher the water level at Keelung River, the further pressure box culvert’s diversion rate is reduced by backwater effect.
    Appears in Collections:[水資源及環境工程學系暨研究所] 學位論文

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