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系統識別號 U0026-0812200910453046
論文名稱(中文) 由懸浮載量測值推算底床載之研究
論文名稱(英文) Calculation of bed load based on the measured data of suspended load
校院名稱 成功大學
系所名稱(中) 水利及海洋工程學系專班
系所名稱(英) Department of Hydraulics & Ocean Engineering (on the job class)
學年度 91
學期 2
出版年 92
研究生(中文) 白進忠
研究生(英文) Jinn-Jong Bair
電子信箱 bair@mail.hyd.ncku.edu.tw
學號 n8789108
學位類別 碩士
語文別 中文
論文頁數 48頁
口試委員 指導教授-蔡長泰
召集委員-王燦汶
口試委員-謝勝彥
口試委員-詹錢登
口試委員-黃進坤
中文關鍵字 底床質載  懸浮載  底床載 
英文關鍵字 bed material load  bed load  suspended load 
學科別分類
中文摘要 本文發展以實測平均懸浮載濃度及平均流速推算明渠含懸
浮沉滓水流之速度剖面與濃度剖面的方法,並發展計算懸
浮載輸運率及底床載輸運率的數值模式,以應用於推算有
可測載資料時之底床載輸運率。本研究應用所建立之底床
質載演算模式,選擇四種底床層厚度分別演算各組試驗室
及河流量測資料得到底床載輸運率。由模式演算得出之底
床載輸運率與Einstein公式所計算之底床載輸運率比較,
當底床層厚取為10θd或0.05D時,演算所得之底床載輸運
率與Einstein底床載函數曲線頗為相符。底床質載演算模
式演算求得之底床載輸運率,可應用於檢定適用之底床載
公式。

英文摘要 In this paper, a method was developed to establish
both velocity profile and concentration profile for
uspended sediment based on the measured data of
average velocity and average suspended sediment
concentration. In addition, a numerical model for
computing suspended load and bed load was also
developed for computing bed load transport rate when
measurable load is available. In the study, bed loads
for published laboratory and field sediment data were
computed using the presently developed numerical model
based on four different bed layer thickness. The
computed bed loads were found to be in reasonable
agreement with the values from Einstein’s bed load
function when the thickness of the bed layer was taken
at 10θd or 0.05D. The numerical model developed in the
present study may be used to evaluate the validities of
other bed load formulas.
論文目次 中文摘要..................................................................Ⅰ
英文摘要..................................................................Ⅱ
謝 誌..................................................................Ⅲ
目 錄..................................................................Ⅳ
表 目 錄..................................................................Ⅵ
圖 目 錄..................................................................Ⅶ
符號說明..................................................................Ⅷ
第一章 緒論
1-1 研究緣起與目的.....................................................1
1-2 文獻回顧...........................................................3
1-3 本文組織...........................................................6
第二章 理論分析
2-1 速度剖面控制方程式.................................................9
2-2 濃度剖面控制方程式................................................12
2-3 邊界條件..........................................................14
第三章 底床質載演算模式之建立
3-1 數值方法..........................................................17
3-2 底床層與底床載輸運率..............................................19
3-3 底床質載模式演算流程..............................................21
第四章 模式之應用及討論
4-1 底床層厚度之影響..................................................25
4-2 含懸浮沉滓水流動力黏滯度..........................................26
4-3 試驗室資料之底床載輸運率演算結果及討論............................26
4-4 河流資料之底床載輸運率演算結果及討論..............................28
第五章 結論與建議

5-1 結論..............................................................40
5-2 建議..............................................................41
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