碩士 / 中興大學 / 土木工程學系所 / 95 / In the coastal engineering, the submerged permeable breakwater not only has the function of coastal disaster protection but also enriches the ecology of coastal restoration. Most examples of the Integrated Shore Protection System, the submerged permeable breakwater may located in front of a seawall. However, it is always disregarded that the wave differences between the submerged permeable breakwater and seawall. Under the effect of submerged permeable breakwater located in front of the seawall, this study is aimed to simulate the wave transformation between submerged breakwater and seawall. The model utilized is the controlling formula - parameter of the porous medium and introduced with the theory of nonlinear shoaling correction. First, in this dissertation, accuracy of the formula is examined by wave experiment data. In addition, discuss the effect of wave transformation between submerged breakwater and seawall though the condition of incident wave characteristics and permeable material characteristics.
The calculation result of this dissertation shows that the higher incident wave, the larger disparity of the wave height and the higher pilling-up of water between submerged breakwater and seawall. However, the wave between submerged breakwater and seawall does not change by the period of incident wave. The water pilling-up effect depends on that if the wave node or similar node happened near the submerged breakwater. The wave height between submerged breakwater and seawall will becomes larger when the seawall slope is steeper. The wave height between submerged breakwater and seawall will be larger than the wave height without seawall. In the addition of averaged water level, when the wave node or similar node happens near submerged breakwater, the water pilling-up between submerged breakwater and seawall will higher than the water piling-up of submerged breakwater back with no seawall. On the contrary, the water pilling-up will lower than it that behind submerged breakwater with no seawall.
| Identifer | oai:union.ndltd.org:TW/095NCHU5015078 |
| Date | January 2007 |
| Creators | Hsin-yu Chen, 陳信佑 |
| Contributors | 蔡清標 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 61 |
Page generated in 0.0013 seconds