請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/53004
標題: | 在半壓密細泥環境下,以實驗探討虹吸對泥栓形成現象之研究 Plug formation in hydrosuction experiments with semi-consolidated fine sediment |
作者: | Yu-Wen Chen 陳裕文 |
指導教授: | 卡艾瑋(Herve Capart) |
關鍵字: | 抽泥,虹吸,粒子影像追蹤,水下地形,泥砂濃度,半壓密, hydrosuction,Photoscan,particle tracking,semi-consolidated sediment,syphon, |
出版年 : | 2015 |
學位: | 碩士 |
摘要: | For solving the problem caused by the fine sediment in the reservoir, hydrosuction is widely used to remove sediment deposits. In prior research, the delivered sediment concentration attained during hydrosuction was found to vary greatly with consolidation duration. In order to resolve this influence in greater detail, we conducted a new series experiments focused on contrasting the hydrosuction responses of semi-consolidated and consolidated sediment, using a small-scale suction pipe and on-line densimeter. For reconstructing topography, we use the software Aigsoft Photoscan to scan the underwater topography. For consolidated sediment, a steep crater rapidly forms, causing water to break through and hydrosuction efficiency to drop. For semi-consolidated sediment, a plug forms along the surface, helping to delay water entry and making hydrosuction more efficient. The results of semi-consolidated and consolidated experiments are contrasted and compared with the results of prior experiments. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/53004 |
全文授權: | 有償授權 |
顯示於系所單位: | 土木工程學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-104-1.pdf 目前未授權公開取用 | 8.6 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。