| 研究生: |
何明峰 He, Ming-Feng |
|---|---|
| 論文名稱: |
成功筐網應用在海岸保護之研究 - 以雙春海岸為例 The Application of Cheng-Kung Porous Basket to Coastal Protection - Case Study in the Shuang-Chun Coast |
| 指導教授: |
黃進坤
Huang, Jin-Kun 唐啟釗 Tang, Qi-Zhao |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 水利及海洋工程學系 Department of Hydraulic & Ocean Engineering |
| 論文出版年: | 2012 |
| 畢業學年度: | 100 |
| 語文別: | 中文 |
| 論文頁數: | 123 |
| 中文關鍵詞: | 筐網 、雙春海岸 |
| 外文關鍵詞: | CKPB, Shuang-Chun coast |
| 相關次數: | 點閱:61 下載:12 |
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本研究之區域位於台南市北門區的雙春海岸,實驗地點靠近八掌溪出海口之左岸。雙春海岸全長3.2公里,界於八掌溪與急水溪之間,然而近年來於雙春海岸北側,海岸線持續受到侵蝕而後退。
成功筐網具有穩定流場、減緩流速的特性,本文利用此筐網特性,應用於海岸保護。當波浪通過筐網時將產生逐層的消能,以期達到筐網後方遮蔽區淤積的作用。本研究於2011年6月21日在雙春海岸設置總長50公尺之筐網群,並長期測量地形的變化,以探討筐網群的消波作用是否能達到筐網後方遮蔽區淤積的效果。
經過一年的長期追蹤,本研究區塊北區之平均淤積高度達20cm,淤積峰分別位於筐網後方10m與40m處;遮蔽區之平均淤積高度達53cm,淤積峰分別位於筐網後方10~20m與40m處;筐網南區之平均淤積高度達48cm,淤積峰分別位於筐網後方5m與45m處。
海岸設置筐網在正常波浪作用下,地形均有淤積現象,惟颱風期間大風浪的侵襲下,地形將受到大幅度的侵蝕。
This Study area is located on Shuangchun Coast of Beimen Dist, Tainan City. The experiment location is near the left shore of the mouth of BaZhang River. The full length of Shuangchun Coast is 3.2 km, between BaZhang River and Jishui River. But in the recent years, the north side of Shuangchun Coast is in erosion.
The features of CKPB are that it could steady flow and reduce the velocity of flow. This study applies these features on coastal protection. When the waves through the CKPB, it will reduce the wave energy in order to achieve the deposition behind the shield area. This Study set up CKPB 50 meters on Shuangchun Coast on June 21, 2011.
After a long-term tracking for 1 year, the average depositional height is 20cm in the north region of this study area, and the max depositions are located on 10m and 40m behind the CKPB. The average of the depositional height is up to 53cm in shield area, and the max depositions are located 10m and 40m behind the CKPB. The average deposition height is 48cm in the south region of this study area, and the max depositions are located on 10m and 40m behind the CKPB.
There is the phenomenon of deposition on all terrain setting up the CKPB under normal waves. But there is a huge degree of erosion when the huge waves strike in the typhoon seasons.
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