摘要
以三峡水库蓄水运用后实测沙峰输移资料为基础,分别研究了三峡水库汛期沙峰传播时间和沙峰出库率与不同影响因素之间的关系.采用理论推导和逐步回归相结合的方法,找到了沙峰传播时间和沙峰出库率的主要影响因素,确定了沙峰传播时间和沙峰出库率的公式结构形式,回归建立了拟合效果较好的三峡水库沙峰传播时间公式和沙峰出库率公式,并采用实测资料对公式进行了初步验证.研究成果揭示了三峡水库汛期沙峰输移特性,可为三峡水库汛期泥沙调度提供参考.
Based on the field data,the characteristics of the peak of the sediment concentration history of the Three Gorges Reservoir in flood seasons were studied,e.g.,the traveling time(TT)and the reduction ratio after passing through the dam(RR),which may relate to several different factors.First,the theoretical deduction and the stepwise regression were combined to analyze and find the major factors which determined the TT and the RR of the peak of the sediment concentration history.Second,the regression analysis and curve fitting were used to establish the formulas for the TT and the RR and its parameters.Third,the performances of these new formulas for the TT and the RR were validated by the field data.The properties of the sediment transport of the Three Gorges Reservoir in flood seasons was then studied,whose results may provide references for the operation of the Three Gorges Reservoir.
作者
黄仁勇
舒彩文
谈广鸣
HUANG Renyong;SHU Caiwen;TAN Guangming(Yangtze River Scientific Research Institute,Wuhan 430010,China;State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China)
出处
《应用基础与工程科学学报》
EI
CSCD
北大核心
2019年第6期1202-1210,共9页
Journal of Basic Science and Engineering
基金
国家重点研发计划项目(2016YFC0402304,2016YFC0402305,2016YFC0402309,2017YFC0405306,2017YFC0405304)
国家自然科学基金项目(51779014)
中央高校基本科研业务费专项资金资助(2042016kf1083)
中央级公益性科研院所基金项目(CKSF2019411HL,CKSF2015049,CKSF2019490HL)
三峡水库科学调度关键技术第二阶段研究项目(SXSN/4107,SXSN/4277)
三峡工程泥沙重大问题研究项目(12610100000018J129-02)
三峡后续工作项目(ZZ2018059-016F)
美丽中国生态文明建设科技工程专项资助(XDA23040502).
关键词
三峡水库
沙峰输移特性
沙峰传播时间
统计分析
Three Gorges Reservoir
transportation characteristics of sediment concentration peak
traveling time of sediment concentration peak
statistical analysis
