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研究生:黃棨達
研究生(外文):Chi-Da Huang
論文名稱:潛堤對波浪溯升影響之研究
論文名稱(外文):Influence of the Submerged Breakwater to the Wave Runup
指導教授:林朝福莊甲子莊甲子引用關係
指導教授(外文):Chao-Fu LinJea-Tzyy Juang
學位類別:碩士
校院名稱:逢甲大學
系所名稱:土木及水利工程研究所
學門:工程學門
學類:土木工程學類
論文種類:學術論文
論文出版年:2001
畢業學年度:89
語文別:中文
論文頁數:115
中文關鍵詞:溯升潛堤三角階梯堤
外文關鍵詞:runupsubmerged breakwatertriangular step dyke
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本文首先根據Cross and Sollitt(1972)之波浪溯升理論,利用試驗結果計算出溯升曲線各係數值,其次利用Seabrook and Kevin(1998)之波浪經潛堤後傳遞波衰減之觀念,迴歸分析出波浪通過潛堤後作用於斜堤上之溯升高的溯升計算模式,模式計算結果與試驗所得者甚為吻合。而後,本文再於三角階梯堤前不同距離位置設置不同潛沒水深,不同梯形潛堤堤頂寬度之離岸潛堤,利用試驗以不同波浪尖銳度的不規則波(irregular wave)進行波浪溯升試驗研究。由試驗結果得知,當無配置潛堤時,光滑堤面分析結果與Van der Meer(1992)之分析趨勢相同,而階梯堤面亦為如此,但階梯堤面對於降低相對溯升高效應似較不透水之拋石堤面不佳;此外,當有配置潛堤時,潛堤潛沒水深對波浪相對溯升高的降低影響最大,至於潛堤的堤頂寬度之增減對降低相對溯升高功效則有限,另潛堤設置位置對波浪相對溯升高之降低影響則不甚明顯。
In this study, the wave runup theorem that proposed by Cross and Sollitt(1972) was quote to use first. The idea that the concept of the decay wave which propagate and pass over the submerged breakwater was applied to use at the second. After that, a relative wave runup height prediction model was presented. The comparison between the predicted wave runup and the measured runup wave was coincide each other quite well. Next, in this study, in front of the sea dyke, there have the submerged breakwater was installed for reduce the incident wave. The shape as well as the location of the submerged breakwater was changed at different condition of the incident wave to see the change of the runup waves. From the result of the experiment we find the tendency of the wave runup by this experiment was quite similar to that obtained by van der Meer(1992) for smooth surface of the sea dyke. Meanwhile, when the dyke surface was changed from smooth to step style, the phenomenon of the wave runup on the sea dyke was keep its characteristics still. That means the tendency of the wave runup was similar to those obtained by van der Meer’s. In addition, from the experiment, we find the depth of submerged breakwater that submerged can influence the wave runup on the sea dyke very much. The length of the crest of the submerged breakwater can influence the wave runup height was not so much. As to the affection of the location of the submerged breakwater to the wave runup, the result of the experiment was shows that it was not so big also.
摘要……………………………………………………………………Ⅰ
英文摘要……………………………………………..……...……….Ⅱ
目錄……………………………………………………………………Ⅲ
圖目錄……………………………………………………………...…Ⅵ
表目錄………………………………………………………………...XI
符號說明………………………………………………………...….XII
第一章緒論……………………………………………………….1
1-1 研究動機…………………………………………………………….1
1-2 研究方法…………………………………………………………….2
1-3 本文組織…………………………………………………………….2
第二章文獻回顧………………………………………………...4
2-1 波浪傳遞係數……………………………………………………….4
2-2 波浪相對溯升高…………………………………………………….7
第三章溯升理論分析………………………………………...15
3-1 波浪溯升曲線特性………………………………………………...15
3-2 能量損失係數計算………………………………………………...18
3-3 波浪溯升高之推算………………………………………………...20
3-4 波浪經潛堤後之溯升高推算……………………………………21
第四章試驗研究……………………………………………….24
4-1 試驗佈置…………………………………………………………...24
4-2 試驗條件…………………………………………………………...24
4-3 試驗步驟…………………………………………………………...25
4-4 試驗資料分析……………………………………………………...26
第五章結果分析與討論……………………………………..28
5-1溯升曲線係數與碎波相似參數之關係……………………………28
5-2 能量損失係數與碎波相似參數之相關性………………30
5-3 潛堤對溯升高度之影響…………………………………………...30
5-4 相對溯升高與碎波相似參數之關係……………………………...32
5-4-1 光滑堤相對溯升高與碎波相似參數之關係………………...32
5-4-2 階梯堤相對溯升高與碎波相似參數之關係………………...33
5-5 潛堤潛沒水深對溯升之影響……………………………………...35
5-5-1 光滑堤面……………………………………………………...35
5-5-2 階梯堤面……………………………………………………...36
5-6 潛堤堤頂寬對溯升之影響………………………………………...37
5-6-1 光滑堤面……………………………………………………...37
5-6-2 階梯堤面……………………………………………………...38
5-7 潛堤設置位置對溯升之影響……………………………………...38
5-7-1 光滑堤面……………………………………………………...38
5-7-2 階梯堤面……………………………………………………...39
第六章結論與建議……………………………………………41
6-1 結論………………………………………………………………...41
6-2 建議………………………………………………………………...43
參考文獻……………………………………………………………..44
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