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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/59014完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 劉格非(Ko-Fei Liu) | |
| dc.contributor.author | Chun-Yen Chen | en |
| dc.contributor.author | 陳鈞彥 | zh_TW |
| dc.date.accessioned | 2021-06-16T08:44:34Z | - |
| dc.date.available | 2014-09-02 | |
| dc.date.copyright | 2013-09-02 | |
| dc.date.issued | 2013 | |
| dc.date.submitted | 2013-08-20 | |
| dc.identifier.citation | Hanson, G. J.(1990), 'Surface erodibility of earthen channels at high stresses. Part
I-open channel testing.' Transactions of the ASAE 33.1 (1990): 127-131. 2. G. J. Hanson & A. Simon(2001),” Erodibility of cohesive streambeds in the loess area of the midwestern USA”, Hydrol. Process. 15, 23–38 (2001). 3. Nam, S., Petrie, J., Diplas, P., & Gutierrez, M. (2010). Effects of spatial variability on the estimation of erosion rates for cohesive riverbanks. In International Conference on Fluvial Hydraulics (River Flow 2010) (pp. 8-10). 4. Hsu, L., W. E. Dietrich, and L. S. Sklar (2008), 'Experimental study of bedrock erosion by granular flows', J. Geophys. Res.,113, F02001, doi:10.1029/2007JF000778. 5. C. Tognacca, G.R.Bezzola & H.-E.Minor(2000), ”Threshold criterion for debris-flow initiation due to channel-bed failure”, Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, p89-97. 6. M. Papa, S. Egashira, and T. Itoh(2004) ” Critical conditions of bed sediment entrainment due to debris flow”, Natural Hazards and Earth System Sciences (2004) 4: 469–474. 7. Richard M. Iverson, Mark E. Reid, Richard G. LaHusen(1997),” DEBRIS-FLOW MOBILIZATION FROM LANDSLIDES”, Annu. Rev. Earth Planet. Sci. 1997. 25:85–138 8. Aronne Armanini, Herv’E Capart Luigi Fraccarollo And Michele Larcher(2005),“Rheological stratification in experimental free-surface flows of granular–liquid mixtures”, J. Fluid Mech. (2005), vol. 532, pp. 269–319. 9. 莊巧巧(2011)，高含砂水流流動室內試驗及類神經網路於流變參數推估之應用， 國立中興大學土木工程所碩士論文。 48 10. 謝孟荃、黃宏斌(2007)，混合粒徑輸砂量估算之研究，中華水土保持學報，38(4): 349-371(2007)。 11. 游繁結、翁緯明、許淑玲、童國勛(2007)，定量流超載與減載輸砂試驗，中華 水土保持學報，38(3): 217-226 (2007)。 12. Rafeal C. Gonzalez, Richard E. Woods(2007)，數位影像處理，Digital Image Processing 2/e，第二版，繆紹綱編譯。 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/59014 | - |
| dc.description.abstract | 本研究在室內渠道內，上游於傾倒式檔板後方堆置一三角形土壩(壩長105cm、
高30cm)，下方設有一方形動床坑(長185cm，深12cm)，探討於坡度15 度，流量 1693ml/s 下，底床顆粒與上游土石壩材料粒徑皆相同情況下，模擬由土壩形成之 土石流流經動床時，其影響動床中砂石顆粒的現象。分析過程中以影像處理方式 加上人工判斷進行顆粒定位，繪出砂石顆粒流場速度分佈，並根據流場之流速分 佈描繪出受土石流影響之變動邊界隨時間的變化。 由實驗結果可知，土石流初期在土石流前方尚未到達的位置，底床亦會受到 土石流影響。以最大值誤差過濾流場所繪製底床變動邊界，因有較多流速值較小 被忽略，其邊界包含的範圍小於由平均值誤差、方均根誤差過濾後流場繪製之底 床變動邊界。 | zh_TW |
| dc.description.abstract | In this study, we observe the grain articles in movable bed influence induced by
debris flow through laboratory experiment. The materials in debris flow are the same with in movable bed. In the analysis, we get the successive particle image by a video camera. Through image processing, we get the enhanced images, and then we locate these particles positions by artificial method. After got the flow field velocity, we ignored the velocities which were less than value of the other error type. With the different error type, we plot the boundary between the moving particles and static particles in different time. The results showed that even the area near the debris flow snout were not covered by debris flow, some particles still moved with the neighborhood particles. And the range from the flow field which is processed with maximum-error is less than the other error type. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T08:44:34Z (GMT). No. of bitstreams: 1 ntu-102-R99521322-1.pdf: 13501479 bytes, checksum: 0207847322791f2188cd2352b1800fc2 (MD5) Previous issue date: 2013 | en |
| dc.description.tableofcontents | 國立臺灣大學位論文口試委員會審定書 ..................................................................... i
致謝 .............................................................................................................................. ii 摘要 ............................................................................................................................. iii Abstract ....................................................................................................................... iv 目錄 .............................................................................................................................. v 圖目錄 ........................................................................................................................ vii 表目錄 .......................................................................................................................... x 第一章 緒論 ................................................................................................................ 1 1.1 前言 ............................................................................................................... 1 1.2 研究目的........................................................................................................ 1 第二章 前人研究 ........................................................................................................ 2 2.1 沖刷定義........................................................................................................ 2 2.2 底床沖刷相關研究 ........................................................................................ 2 2.3 土石流沖刷實驗相關研究 ............................................................................. 6 2.4 以顆粒流模擬土石流相關研究 ................................................................... 10 第三章 實驗配置與設計 ........................................................................................... 12 3.1 實驗配置...................................................................................................... 12 3.2 實驗設計...................................................................................................... 14 3.3 實驗步驟...................................................................................................... 15 3.4 數據量測及分析方法 .................................................................................. 17 3.4.1 影像處理步驟 18 3.4.2 顆粒位置定位 26 3.4.3 顆粒定位誤差 31 3.4.4 流場速度取得 32 vi 第四章 實驗結果與分析 ........................................................................................... 34 4.1 實驗現象...................................................................................................... 34 4.2 流場與沖刷邊界 .......................................................................................... 37 4.3 三種誤差過濾方式後之沖刷邊界 ............................................................... 43 第五章 結論與建議 ................................................................................................... 46 5.1 結論 ............................................................................................................. 46 5.2 建議 ............................................................................................................. 46 參考文獻 .................................................................................................................... 47 | |
| dc.language.iso | zh-TW | |
| dc.subject | 室內實驗 | zh_TW |
| dc.subject | 底床變動邊界 | zh_TW |
| dc.subject | 土石流 | zh_TW |
| dc.subject | debris flow | en |
| dc.subject | laboratory experiment | en |
| dc.subject | sediment movement | en |
| dc.title | 土石流導致底床變動邊界之研究 | zh_TW |
| dc.title | Study of Bed Sediment Movement Induced
by Debris Flow | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 101-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 周憲德(Hsien-Ter Chou),賴進松(Jihn-Sung Lai) | |
| dc.subject.keyword | 土石流,室內實驗,底床變動邊界, | zh_TW |
| dc.subject.keyword | debris flow,laboratory experiment,sediment movement, | en |
| dc.relation.page | 48 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2013-08-22 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 土木工程學研究所 | zh_TW |
| 顯示於系所單位： | 土木工程學系 | |
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|---|---|---|---|
| ntu-102-1.pdf 未授權公開取用 | 13.19 MB | Adobe PDF |
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