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標題: 巴陵防砂壩潰壩後河床變動過程之研究
Study of the River Bed Variation after the Baling Check-Dam Failure
作者: 高育林
Yu-Lin Kao
Wen-Hsiao Tseng
Shih-Chieh Chou
Chjeng-Lun Shieh
關鍵字: 巴陵壩;潰壩;河床變動;數值模擬;Baling dam;check-dam failure;river-bed variation;numerical simulation
出版社: 台北市:中華水土保持學會
Project: 中華水土保持學報, Volume 44, Issue 3, Page(s) 255-264.
The study provides longitudinal and cross-sectional analysis of 8 pieces topography data collected from 1980 to 2011 and bed material particle size based on three investigations conducted between 2008 and 2012. The mainstream topography data in December 2007 shows that the head-cutting distance was about 3 kilometers after the dam broke. The topography data since 2008 displays that river the channel is stable as well. The topography data shows that the longitudinal section in the tributary had a head-cutting distance of about 3 kilometers after the dam broke, and the river channel still is showing adjustment behavior. The scour-and-fill analysis result of the mainstream cross-section shows that the transverse adjust changed significantly upstream from the dam location from 2006-2008. The particle size of the bed material has shown a trend from coarsening to fining according to different sampling points. Therefore, the river bed is still adjusting continuously. Finally, this study is based on a debris flow and sediment laden flow numerical model. The simulation result is fit for river-bed changes after dam-break.

Appears in Collections:第44卷 第03期

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