碩士 / 國立臺灣海洋大學 / 河海工程學系 / 92 / In this study, a non-touch seabed scouring measurement technique was developed. Combine with laser beams, digital image processing, and coordinate adjustment skill, the device can measure the seabed profile remotely to prevent any disturbance on the seabed. The survey of time-varying topography in a large range can be done by repeating a simple procedure in high resolution and accuracy.
From the application of the device on the hydraulic model test of seabed scouring in front of a vertical breakwater during the typhoon wave action period. The time varying of the seabed scouring, the maximum scour depth, location, and needed time was investigated. The results show that the maximum scour depth increase with time, and has no obvious change on its location. The needed time to reach the maximum scour depth is decreased when wave condition getting larger.
| Identifer | oai:union.ndltd.org:TW/092NTOU5192014 |
| Date | January 2004 |
| Creators | Te-Lung Chen, 陳德龍 |
| Contributors | Jaw-Guei Lin, 林炤圭 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 121 |
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