都市地區之洪氾漫淹現象，受到都市街區積水逕流向街道渲排，以及都市道路縱橫交錯的導引水流影響，也有賴路面下雨水下水道之渲排街道水流以減免淹水災情。因此，豪雨時，街道與兩側街區及雨水下水道均有流量交換，應分析三者在豪雨時之水流現象。
本研究旨在發展雨水下水道排水演算模式及街道-雨水下水道流量交換律，並與街道路網水流模式及街區擬似二維淹水模式整合，建立成為街道與雨水下水道淹排水模式，以演算都市地區之洪氾漫淹現象，利用於擬定防災預警計畫評估及設計都市排水系統。
本研究應用坡度面積法及管流理論建立雨水下水道排水演算模式以演算降雨過程中雨水下水道排水及人孔水位變化現象。
經以設計案例進行測試，分析測試結果顯示街道與雨水下水道淹排水模式能合理的模擬水流在街區、街道與雨水下水道中之流量交換，並能有效率且合理的模擬水流在街區、街道與雨水下水道中之漫淹情況，應進一步收集都市淹排水實測資料，進行實例演算。

The inundation of the urban area was affected to the water of the blocks of urban that flow to streets and to sewers, therefore; the sewers could prevent the disaster. The blocks and the streets and the sewers were exchanging discharge that should be analyzed when the storm happened.

The purpose of this study was to set up the Streets-Sewers Drainage-Inundation model and the exchanging discharge in the streets and the sewers. It was also to see the street network system as the drained system of one-dimension gradually varied flow and combine with the quasi-two-dimension inundated model as the basis if the disaster prevention plan or the design of the drained system in the future.

In this study, applying the slope-area method and the discharge law of storm sewers to set up the Sewers Drainage model, developing the numerical method to calculate the discharge in sewers by water levels in manholes at each ends.

The model was tested for the case of the design. The result of the case showed that the model to calculate the exchanging discharge was reasonable and it also could simulate the inundation situation in the blocks, the streets and the sewers. The study should collect observations and compare the result with it.

1. 台北市政府工務局新建工務處，「台北市雨水下水道規劃手冊（上）（下）」，民國78 年5 月。
2. 林志翰，「排水網路變量流模式之比較與應用」，國立成功大學水利及海洋研究所碩士論文，1995。
3. 高雄市政府捷運工程局，「高雄都會區大眾捷運系統防洪檢討研究」，2003。
4. 許銘熙，「河川變量流非線性隱式法模式之穩定性」，國立台灣大學土木工程研究所博士論文，1984。
5. 許銘熙，王如意，顏清連，「堤防溢堤之河川洪流演算模式及其應用」，農業工程學報，第34卷，第3期，1988.
6. 陳菁如，「淹水與排水數值研究」，國立成功大學水利及海洋研究所碩士論文，1996。
7. 梁剛瑋，「都市街區—路網淹排水模式之研究」，國立成功大學水利及海洋工程研究所碩士論文，2000。
8. 張良裕，「緩坡雨水下水道系統模擬模式之研究」，國立成功大學水利及海洋工程研究所碩士論文，2008。
9. 經濟部水利署水利規劃試驗所，「鹽水溪及南科相關排水整體治理規劃檢討--洪流分析及淹水模擬、淹水潛勢分析」, 台中，2004。
10. 經濟部水利署，「沿海低地平原排水系統之暴潮與越域水流研究(1/2)」，2007。
11. 蔡長泰，顏清連，「通用水面線演算模式」，台灣水利季刊，第29 卷，第3 期，pp.11-18，1981。
12. 蔡長泰，黃新元，吳建民，「定量緩變積渠流數學模式」，土木水利季刊，第十卷，第3期，pp.61-68，1983.
13. 蔡長泰，郭金棟，「環河南路高架道路加寬工程水理特性之研究」，國立成功大學水利及海洋工程學系研究試驗報告，NO.73-74，1984。
14. 蔡長泰，蔡智恆，「洪流演算模式（FRLFI-模式）之建立（I）~（III）使用者手冊」，行政院國家科學委員會專題研究計畫成果報告，1984。
15. 蔡長泰，游保杉，周乃昉，史天元，楊昌儒，李三春，「地理資訊系統在淹水預警系統上的應用」，1995。
16. 蔡世瑛，「市區街道系統淹排水模式之研究」，國立成功大學水利及海洋工程研究所碩士論文，1998。
17. 劉德潤，「普通水力學（上）」第八章，正中書局，民國42年12月。
18. 薛人豪，「雨水下水道系統輸水能力之研究」，國立成功大學水利及海洋工程研究所碩士論文，2007。
19. 顏清連、許銘熙、陳昶憲、賴進松，「淡水河系洪水演算模式(四)--堤防潰堤洪模式之建立」，行政院國科會防災科技報告75-19號，1988。
20. Chow, V. T., “Open-Channel Hydraulics” , McGraw-Hill, New York, USA, 1959.
21. Cunge , J.A. , “Two- Dimensional Modeling of Flood Plain” , Chap. 17 of Unsteady Flow in Open Channel , K.Mathmood and V.Yevjevich eds. , Water Resource Publishung Limiteed , pp.18~19 , pp.22~24 , 1980.
22. Chaudhry , M.H. , “Open Channel Flow” , Englewood Cliffs, New Jersey, 1993.
23. Can-Hua Zhao and David Z. Zhu “Experimental Study of Surcharged Flow at Combining Sewer Junction,” Journal of Hydraulic Engineering, Vol. 132, No.12, December 1, 2006.
24. Henderson, F. M. , Open Channel Flow, Macmillan, New York, 1966.
25. Holly, Jr. F.M., J. C. Yang, P. Schwara, J. Schaefer, S.H. Hsu and R. Einhelling, “CHARIMA-Numerical Simulation of Unsteady Water and Sediment Movement in Multiply Connected Networks of Mobil-Bed Channels”, Report No.343, 1990.
26. Inove, K. , Y.Iwasa and N.Mastuo “Numerical Analysis of Two-Dimensional Free Surface Flow by Means of Finite Difference Method and its Application to Practical Problem” , ROC – Japan Joint Seminar on Water Resource Engineering , Taipei , The Republic of China , March , 1975.
27. Mahmood, K. and Yevjevich, V., Unsteady flow in Open Channels, Vol. II, Water Resources Publication, Fort Collins, Colorado, 1995.
28. Michael B. Smith , “Comment on ‘Analysis and modeling of flooding in urban drainage systems” Journal of Hydraulic Engineering,Vol.317,pp.355–363,2006.
29. Merlein, J., “Flow in submerged sewers with manholes,” Urban Water, Vol.2, pp. 251-255, 2000.
30. M.H. Hsu, S.H. Chen, T.J. Chang , “Inundation simulation for urban drainage basin with storm sewer system” Journal of Hydraulic Engineering, Vol.234,pp.21–37, 2000.
31. Nasello, C. and Tucciarelli, T., “Dual Multilevel Urban Drainage Model,” Journal of Hydraulic Engineering, Vol. 131, pp. 748-754, 2005.
32. P.Garcia - Navarro , A.Fras , I. Villanueva. “Some Result for One- Dimensional Modeling of Real Case” Journal. of Hhydrology 216 , p227-247 , 1991.
33. Rajaratnam, N., Chamani, “Energy Loss at Drops”, Journal of Hydraulic Research, Vol. 33, No. 3, 1995.
34. Schmitt, T. G., Thomas, M., and Ettrich, N., “Analysis and modeling of flooding in urban drainage systems,” Journal of Hydrology, Vol. 299, pp. 300-311, 2004.
35. Sevuk, A. S., Yen, B. C., and Peterson, G. E., “Illinois Storm Sewer System Simulation Model: User’s Manual.”, Research Report NO.73, Water Resource Center, University of Illinois at Urbana-Champaign, (NIIS PB 227 338), 1973.
36. Taylor , E.H. , “Flow Characteristics at Rectangular Open – Channel Junctions”Trans. ASCE , Vol. 109 , pp. 893 – 912 , 1944.
37. Vedrana Kutija, “A Generalized Method for the Solution of Flows in Networks”, Journal of hydrulic research, Vol. 33, No. 4, 1995.
38. Vasconcelos, J. G., Wright, S. J., and Roe, P. L. “Improved simulation of Fow regime transition in sewers: Two-component pressure approach.” Journal of Hydraulic Engineering, 132(6), 553-562, 2006.
39. Wayne C. Huber and Robert E. Dickinson, “Storm Water Management Model.”, Extran and supporting modules, Version 2.3, 2000.
40. Yen, B. C., “Hydraulics of Sewers.” in Yen, B. C. ed., Advances in Hydroscience, Vol. 14, Academic Press, Orlando, pp. 1-122, 1986.