| 研究生: |
張浩維 Chang, Hao-Wei |
|---|---|
| 論文名稱: |
石門水庫淤泥絮網沉降特性之研究 Characteristics of Floccuated Framework Settling on the Shi-Men Reservior Mud |
| 指導教授: |
黃進坤
Huang, Chin-Kun |
| 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: | 2006 |
| 畢業學年度: | 94 |
| 語文別: | 中文 |
| 論文頁數: | 60 |
| 中文關鍵詞: | 沉降速度 、絮網 |
| 外文關鍵詞: | floccuated framework, settling velocity |
| 相關次數: | 點閱:80 下載:3 |
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中文摘要
本文利用石門水庫底床淤泥來進行絮網階段群體泥沙靜水試驗,探討水庫淤泥各水深濃度隨時間變化及其界面沉降速度,進而了解石門水庫淤泥的沉降特性。
由本文試驗結果與分析,當初始濃度達70(g/L),沉降一開始就會產生清楚可目測的清渾水交界面,觀察界面的下降就可知其界面沉降速度。從試驗資料得知,當等濃度層消失時沉降速度就會忽然驟減。
當濃度範圍介於70〜110(g/L),水深對沉速影響不大,沉速均隨時間增加而變慢;當濃度範圍介於110〜150(g/L),水深50(cm)之沉速大於水深200(cm)之沉速。同時,本文所採用之等比例濃度法可用來估算固解層濃度。
關鍵字:沉降速度、絮網
ABSTRACT
This paper make use of Shi-Men reservoir bottom mud to carry out flocculated framework phase batch experiment in static water‚ discuss every depth layer concentraction change with time and it’s interface settling velocity‚ and realize settling characteristic of Shi-Men reservoir mud.
By the results and analyses of this paper‚ when initial concentraction is about 70(g/L)‚ it can produce clear and visible interface‚ and observing interface down also know settling velocity. When constant concertraction region disappears, interface velocity would be suddenly down.
As concentraction between 70〜110(g/L), settling velocity decreases with time increases; concentraction between 110〜150(g/L), settling velocity of water depth 50(cm) is greater than settling velocity of water depth 200(cm). This paper also use Ratio Concentraction Method to estimate compression region concentraction.
key words:settling velocity、floccuated framework
參考文獻
1、沙玉清(1963),「泥沙運動學引論」。
2、宋根培(1985),「混合沙沉降特性的試驗研究」,泥沙研究。
3、俞維昇、何昊哲、李鴻源(2005),「黏性泥沙沉降速度之研究」。
4、高亞軍(1998),「細顆粒電木粉的密實過程及其對起動流速的影響」,南京水利科學研究院河港研究所。
5、唐偉熊(2002),「靜水中阿公店水庫淤泥沉降特性之試驗研究」,國立成功大學水利及海洋工程研究所碩士論文。
6、張德茹、梁志勇(1994),「不均勻細顆粒泥沙粒徑對絮凝的影響試驗研究」,水利水電科學研究院。
7、黃建維(1981),「黏性泥沙在靜水中沉降特性的試驗研究」,泥沙研究。
8、樂培九(1983),「靜止渾水中泥沙沉降的初步研究」,泥沙研究。
9、樂培九(1983),「黏性泥沙的絮凝及對泥漿流變特性影響問題的初步探討」,泥沙研究。
10、錢寧、萬兆惠(1991),「泥沙運動力學」,科學出版社。
11、嚴鏡海(1982),「群體泥沙靜水沉降的阻力分析」,泥沙研究。
12、嚴鏡海(1984),「黏性細顆粒泥沙絮凝沉降的初探」,泥沙研究。
13、Baldock T. E., Tomkins M. R., Nielsen P. and Hughes M. G., (2004) "Settling Velocity of Sediments at High Concentrations", Coastal Engineering.
14、Diplas Panayiotis and Papanicolaou Athanasios N., (1997) "Batch Analysis of Slurries in Zone Stttling Regime", Journal of Environmental Engineering.
15、Haralampides Katy, McCorquodale J. Alex and Krishnappan B. G., (2003) "Deposition Properties of Fine Sediment" Journal of Hydraulic Engineering.
16、Li Yigong and Mehta Ashish J., (1998) "Assessment of Hindered Settling of Fluid Mudlike Suspensions", Journal of Hydraulic Engineering.
17、Richardson, J.F., Zaki, W.N., (1954) "Sedimentation and Fluidisatoin: Part 1. Trans. Inst. Chem. Eng.
18、Shin Byong S. and Dick Richard I., (1980) "Applicability of Kynch Theory to Flocculent Suspensions", Journal of Environmental Engineering Division.
19、Tan T. S., Yong K. Y., Leong E. C. and Lee S. L., (1990) "Sedimentation of Clayey Slurry", Journal of Geotechnical Engineering.
20、Thompson Charlotte E. L. and Amos Carl L., (2004) "Effect of Sand Movement on a Cohesive Substrate", Journal of Hydraulic Engineering.