三峡水库蓄水运用后汛期洪水排沙比初步研究  

Sediment delivery ratio of Three Gorges reservoir in flood events after its impoundment

作　　者：黄仁勇[1,2] 谈广鸣[1] 范北林[2] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072 [2]长江科学院,武汉430010

出　　处：《水力发电学报》2013年第5期129-133,152,共6页Journal of Hydroelectric Engineering

基　　金：国家科技支撑计划项目(2012BAB04B02;2012BAB04B04);中央级公益性科研院所基金项目(CKSF2013008);国家自然科学基金(51209013;51209017;51209018)

摘　　要：本文以三峡水库运用后实测洪水排沙比资料为基础,对三峡水库汛期洪水排沙比与不同影响因素之间的关系进行了分析讨论。采用逐步回归的方法,找到了排沙比的主要影响因素,建立了一个拟合效果较好的排沙比公式,并以此为基础,提出了一个便于实时调度决策使用的汛期洪水排沙比公式,研究提出三峡水库汛期泥沙调度应以调节入库流量和坝前水位为主。本文研究成果可为三峡水库汛期泥沙调度提供参考。In this work, sediment delivery ratio （SDR） of the Three Gorges reservoir （TGR） was studied for flood events after the reservoir＇s impoundment and its influencing factors were examined. A new SDR formula was established based on the field measurements through identification of the major factors with a stepwise regression method, and a simple version was derived for application of real-time operation in flood reason. This study suggests that in flood season, the regulation of TGR should put higher priority on the control of reservoir inflow and the control of dam front water level.

关 键 词：河流泥沙工程学 排沙比 回归分析 汛期洪水 三峡水库 

分 类 号：TV145[水利工程—水力学及河流动力学]