Effectiveness of Initial Operation Storage to Flood Augumentation of Reservoir Flood Control

• Main Authors: Yang, Sen-Bih, 楊森弼
• Other Authors: Frederic N.-F. Chou, Din Shrin-Chen
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/34639631551140110201

碩士 === 國立成功大學 === 水利及海洋工程學系 === 84 === To reduce the occurrence of disastrous floods. With permission of economy, People have built hydraulic constuuctions such as the reservoirs. They look forward to be aware of the magnitude and probability of downstream flood dis- charge after the reservoir opreation, in order to be the necessity measure for the flood control. The evolution of river channel section and the scouring and deposition of flood plain are mainly the effects of flood discharge, and the process and magnitude of flood dischargeaffect the stability design of river channel.Therefore, as far as flood discharge is concerned, it's essential to consider the influence of the reservoir operation to flood augumentation. So the peak flow and probability distribution of discharge in certain locations over the river basin would be the reference for design of section size of river channel and utilization of plain along the river. The outflow discharge of the reservoir is related with the reservoir storage.In the condition of lacking historical flood control records,This study suggestsan analytical method to probe into the effectiveness of initial operation storageto flood augumentation of reservoir flood control and takes the flood control ope-ration of Tsengwen reservoir as an example. It is concluded that probability of the maximum flood discharge of the spiiway is quite small and probable maximum flood (pmf) would be overestimated. May be it can be made a correction to reduce the unnece- ssary operation of the spillway and to make the best use of the reservoir storage.