碩士 / 國立中興大學 / 水土保持學系 / 92 / Setting T-bone structure in the enlarged horizontal section of fishway has a good effect on increasing the space for fish and the flow depth and on reducing the flow velocity in fishway. The deposit of sediment in the fishway will affect the flow. In this paper we study the length, width, height and the interval of T-bone structures and also the angle between T-bone structure and flow. For fixed flow discharge and upper stream fishway slope, the experiment discuss the flow depth, the flow velocity and the sediment after setting T-bone structure.
By analyzing experiment data, we know that setting T-bone structure in the enlarged horizontal section of fishway can increase the flow depth and reduce the flow velocity effectively. The length and interval of T-bone structure are more important than the width, height and angle between T-bone structure and flow in affecting the range of raising flow depth and reducing the flow velocity and sediment deposits. But, whatever any kind of T-bone structure exists sediment deposits. There are a few sediment deposits in the side of T-bone structure and the enlarged horizontal section of fishway, so the fishway has no blockade.
| Identifer | oai:union.ndltd.org:TW/092NCHU0080011 |
| Date | January 2004 |
| Creators | Yung-Hsin Chang, 張永欣 |
| Contributors | Ching-Hao Tuan, 段錦浩 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 0 |
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