Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/15726
標題: 變量流作用下非均勻橋墩之局部沖刷量測與模擬
Measurements and simulation of local scour at nonuniform pier under unsteady flows
作者: 彭明正
Peng, Ming-Cheng
關鍵字: exposure of foundation;基礎裸露;non-uniform piers;bridge scour;非均勻橋墩;橋墩沖刷
出版社: 土木工程學系所
引用: 1. 林呈,「本省西部重要河川橋樑橋基災害分析與橋基保護工法資料庫系統之建立」,交通部運輸研究所專題研究計畫成果報告, (1998)。 2. 林景輝,「圓柱形橋墩周圍局部沖刷之研究」,碩士論文,私立逢甲大學土木及水利工程研究所,(1993)。 3. 周憲德、吳沛倫、王新貴、張藝馨,「裸露圓柱橋基之局部沖刷分析」,中國土木水利工程學刊,第十四卷,第四期,(2002)。 4. 張文鎰,「圓形橋墩局部沖刷之模擬與試驗驗證」,博士論文,國立台灣大學土木工程研究所,(2002)。 5. 張天峰,「定量流非均勻橋墩之沖刷歷程室內試驗與模擬」,碩士論文,國立中興大學土木工程研究所,(2007)。 6. 張海燕,「河流演變工程學」,科學出版社,(1990)。 7. 張藝馨,「不均勻圓形橋墩之局部沖刷研究」,碩士論文,國立中央大學土木工程研究所,(2000)。 8. 鄭暐曦,「變量流流況下非均勻圓柱型橋墩局部沖刷之研究」,碩士論文,國立中興大學土木工程研究所,(2005)。 9. 賴昱彰,「變量流流況下橋墩局部沖刷之研究」,碩士論文,私立逢甲大學土木及水利工程研究所,(1995)。 10. 蘇重光,「橋墩及橋台周圍局部沖刷之研究( I )」,行政院國家科學委員會專題研究計畫成果報告,第16頁至第21頁,(1995)。 11. Chiew, Y. M., “Scour Protection at Bridge Piers” J. Hydr. Engrg., ASCE Vol. 118, No. 9, pp. 1260~1269, (1992). 12. Chiew, Y. M., “Mechanics of Riprap Failure at Bridge Piers” J. Hydr. Engrg., ASCE Vol. 121, No. 9, pp. 635~643, (1995). 13. Chiew, Y. M., “Local Scour and Riprap Stability at Bridge Piers in a Degrading Channel” J. Hydr. Engrg., ASCE Vol. 130, No. 3, pp. 218~226, (2004). 14. Ettema, R., “Scour at Bridge Piers” Report. No. 216, School of Engineering., University of Auckland., Auckland., New Zealand, (1980). 15. Imamoto, H., and Ohtoshi, K., “Local Scour Around a Non-uniform Circular Cylinder” Proc. of IAHR Congress., pp. 304-309,(1987). 16. Jain, S. C., and Fischer, E. E. “Scour Around Bridge Piers at High Velocity” J. Hydr. Engrg., ASCE Vol. 106, No. 11, pp. 1827~1842, (1980). 17. Jain, S. C. “Maximum Clear-Water Scour around Circular Piers” J. Hydr. Engrg., ASCE Vol. 107, No. 5, pp. 611~626, (1981). 18. Kothyari, U. C., Garde, R. J. ,and Ranga Raju, K. G., “Temporal variation of scour around circular bridge piers” J. Hydr. Engrg., ASCE Vol. 118, No. 8, pp.1091-1106, (1992). 19. Martin-Vide J. P., Hidalgo C., and Bateman A., “Local Scour at Piled Bridge Foundations” J. Hydr. Engrg., ASCE, Vol. 124, No. 4, pp. 439~444, (1988). 20. Melville, B. W., and Sutherland, A. J., “Design Method for Local Scour at Bridge Piers” J. Hydr. Engrg., ASCE Vol. 114, No. 10, pp. 1210~1226, (1998). 21. Melville, B. W., “Pier and Abutment Scour:Integrated Approach” J. Hydr. Engrg., ASCE Vol. 123, No. 2, pp. 125~136, (1997). 22. Melville, B. W., and Coleman, S. E., “Bridge Scour” Water Resources Publication., LLC., Highlands Ranch, Colorado, USA, (2000). 23. Melville, B. W., and Raudkivi, A. J., “Effects of Foundation Geometry on Bridge Pier Scour” J. Hydr. Engrg., ASCE Vol. 122, No. 4, pp. 203~209, (1996). 24. Melville, B. W., and Chiew, Y. M., “Time Scale for Local Scour at Bridge Piers” J. Hydr. Engrg., ASCE Vol. 125, No. 1, pp. 59~65, (1999). 25. Melville, B. W. “Local Scour Depth at Bridge Foundations:New Zealand Methodology” First International Conference on Scour of Foundations, ICSF-1 pp. 120~139, (2002). 26. Mia, M. F. ,and Nago, H., “Design Model of Time-Dependent Local Scour at Circular Bridge Pier” J. Hydr. Engrg., ASCE Vol. 129, No. 6, pp. 420-427, (2003). 27. Raudkivi, A. J., and Ettema, R., “Effect of Sediment Gradation on Clear Water Scour” J. Hydr. Engrg., ASCE Vol. 103, No. 10, pp. 1209~1212, (1977). 28. Raudkivi, A. J., and Ettema, R., “Clear-Water Scour at Cylindrical Piers” J. Hydr. Engrg., ASCE Vol. 109, No. 3, pp. 338~350, (1983). 29. Raudkivi, A, J., “Functional Trends of Scour at Bridge Piers” J. Hydr. Engrg., ASCE Vol. 112, No. 1, pp. 1~13, (1986). 30. Shen, H. W., and Schneider, V. R. and Karaki, S., “Local Scour Around Bridge Piers” J. Hydr. Engrg., ASCE Vol. 95, No. 6, pp. 1919~1940, (1969). 31. Yalin, M. S., “Mechanics of sediment transport” 2nd Ed., Pergamon, Oxford, England,(1977).
摘要: 
台灣河川坡陡流急,颱風暴雨期間河川水位漲落迅速,且洪水延時甚短,橋墩底床易受劇烈沖刷,甚致造成橋墩基礎裸露而危及橋樑安全。
本研究針對清水沖刷,以較接近天然情況之變量流,採前、中、後峰流量歷線,配合三種覆土高度,進行非均勻橋墩室內試驗與模擬,探討其所造成局部沖刷之差異。試驗結果顯示,覆土位於不均勻面上時,各種變量流歷線之沖刷深度會隨水流強度之增強而增加,且最大沖刷深度大致於變量流歷線之上升段完成。此外,三種峰型流量歷線之最大沖刷深度並無明顯不同,亦即峰型對沖刷極限深度影響不大。
在沖刷模擬方面,本研究考慮墩前主要渦流與泥沙輸送之理論,針對定量流作用下未裸露之不均勻橋墩沖刷,提出一計算模式,以模擬其完整之沖刷歷程。模擬結果顯示,變量流之不均勻墩徑沖刷行為,可根據變量流歷線中各時段之定量流沖刷結果,採不同流量之相同沖刷深度套疊概念,進行疊加模擬。
URI: http://hdl.handle.net/11455/15726
其他識別: U0005-1008200822153100
Appears in Collections:土木工程學系所

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