許銘熙2006-07-252018-06-292006-07-252018-06-292003http://ntur.lib.ntu.edu.tw//handle/246246/10755本研究計畫屬於「防洪示範區淹水境況模擬與決策支援系統之研究（三）」整合型計畫之子計畫二「台南科學園區排洪能力及洪災防治措施之研究」，全程計畫為期三年。 本文以台南科學工業園區及鹽水溪流域為研究對象，根據研究區域內特殊之水文、地文狀況、排水系統及滯洪池的水流特性，建立排水及淹水模式，進行不同重現期降雨之淹水模擬。模式中包括雨水下水道系統演算、一維渠道變量流水理演算、二維地表漫地流演算及滯洪池演算等部分。在排水系統模式方面，利用美國環境保護著之暴雨經理模式，以模擬排水系統中水流之流況以及發生溢流點的流量歷線。一維渠道水理演算、主要根據一維變量流動力波方程式，非線性隱式差分法求解各時段之水深與流量。二維漫地流模式主要利用二維零慣性理論，以有限差分法求解地表之淹水深及流速。滯洪池模式是求解水文連續方程式，採用雙出流口型式，建立滯洪演算程序，以獲得滯洪池之出流歷線。 本研究針對台南科學園區與鹽水溪流域之地文及水文特性，建立完整之都會區淹水模式，以台北市中央區民國90 年9 月納莉颱風事件進行模式驗證，並應用於台南科學園區及鹽水溪流域不同降雨重現期的淹水境況模擬，同時，根據淹水模擬成果，進行研究區域排洪能力及洪災防治措施之研究。This project is the subproject-2, A Study on Drainage Ability and Flood-Damage Mitigation Measures for Tainan Science-Based Industrial Park, of the three-year integrated project, Inundation Scenario Simulation and Decision Support System for Flood-Damage Mitigation in Pilot Areas (Ill). Based on hydrologic and topographic conditions and hydraulic characteristics of storm systems, an inundation model is developed and applied in the Tainan Science-Based Industrial Park and the Yen-shui Creek Basin. The inundation model, which combines the 1 -D channel-flow model, the 2-D overland-flow model, the detention pond simulation model and the storm sewer systems model, is developed to simulate the inundation in the study area. Storm Water Management Model (SWMM) is employed to solve the storm sewer flow component and to provide the surcharged flow hydrographs for surface runoff exceeding the capacity of the storm sewers. The l-D unsteady dynamic flow model is used to simulate the water-stages and flow velocities in the channels. The 2-D diffusive overland-flow model considering the non-inertia equation with alternative direction explicit numerical scheme is then used to calculate the inundation zones and depths due to the surcharged water on overland surface. Detention pond model considers outlet work with rectangular orifices and weirs used for solving hydraulic equations to provide the outflow hydrographs of the detention ponds. The drainage and inundation model is developed based on the topographical and hydraulic characteristics in the study area. The inundation model is verified by the Typhoon Nan event in Central Taipei area in 2001. Different flooding scenarios are simulated for the study area with different obstruction ratios of the sewer drainage systems in the Tainan Science-Based Industrial Park. The drainage improvement measures in the Yen-shui Creek Basin are also evaluated with different designed storms. The simulated results are used to examine the flood draining ability of current drainage systems and flood mitigation measures and provide guide lines for the development of flood mitigation measures.application/pdf7718385 bytesapplication/pdfzh-TW國立臺灣大學生物環境系統工程學系暨研究所雨水下水道系統漫地流滯洪池地理資訊系統排水系統淹水模式Storm sewer systemOverland flowDetention pondGeographic Information SystemInundation modelreporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/10755/1/912625Z002006.pdf