消波結構物之潛堤變化對消波效能的影響

The Different of Submerged Breakwater Dimensions Have Influences in Wave Breaking Efficiency

李貴琪(K. C. Lee)

《華岡紡織期刊》 9卷3期 (2002/09) Pp. 247-254

摘要

本文主要探討離岸潛堤變化對於海岸工程之消波效能影響。並利用反射率、透射率以及波能參數來進行消波效能的討論。另外在潛堤主體型式的不同，來進行模型實驗。由於本文採不透水式之硬式工法，並改變坦堤高、堤寬，以及堤底距海底水水深之變化，將這三者作為潛堤主體形式的討論範圍，以求得最佳化之潛堤，可適用於短、長周期波浪的衝擊，進而達到提前保護海岸的目的。實驗結果顯示，堤高為３２公分，堤寬為１６４公分時為最佳化，而且海底水深為１６公分時，可同時兼具經濟與效能的作用。

關鍵字

反射率 ； 透射率 ； 波能參數 ； 距海底水深

並列摘要

The wave breaking energy modulus of offershore submerged breakwater have influences on coastal engineering .In order to discuss the wave breaking energy modulus, of want to change dimensions of submerged breakwater by processing experiment of my model. In addition ,we want to change dimensions of submerged breakwater by processing experiment of my modes.We adopt un-transmission structures,and change structure height ,structure width ,distance from structure bottom to ocean bed .We discuss this three points to acquire the best dimension of submerged breakwater .It is suibable for shorter and longer period wave ,and protecting coast further.Experiment results have showed some conclusions. When submerged breakwater height is 32cm ,structure width is 164cm, and the distance from structure bottom to ocean bed is 16cm ,we both have haven better efficiency of wave breaking and economic .

並列關鍵字

reflection coefficient ； transmission coefficient ； wave energy modulus ； suberged breakwater