金沙江下游-嘉陵江-三峡梯级水库协同防洪作用分析  

Analysis on flood control function of cascade reservoirs on lower Jinsha River-Jialing River-Three Gorges Project

作　　者：庞树森 孟庆社 杨雁飞 徐涛[1,2] 王由武 PANG Shusen;MENG Qingshe;YANG Yanfei;XU Tao;WANG Youwu(Three Gorges Cascade Dispatch&Communication Center,Yichang 443002,China;Hubei Key Laboratory of Intelligent Yangtze and Hydroelectric Science,Yichang 443002,China;Bureau of Hydrology,Changjiang Water Resources Commission,Wuhan 430010,China)

机构地区：[1]三峡水利枢纽梯级调度通信中心,湖北宜昌443002 [2]智慧长江与水电科学湖北省重点实验室,湖北宜昌443002 [3]长江水利委员会水文局,湖北武汉430010

出　　处：《水利水电快报》2022年第10期1-5,共5页Express Water Resources & Hydropower Information

基　　金：国家重点研发计划(2019YFC0409000)。

摘　　要：为研究水库群协同防洪作用,通过分析嘉陵江流域暴雨洪水的水雨情发展过程、洪水组成、洪水还原等,剖析了2021年嘉陵江3号洪水的特性。结果表明:通过金沙江下游、嘉陵江流域水工程联合削峰错峰,拦蓄寸滩以上来水,拦蓄洪量占寸滩站天然来水总量的10%,缓解了嘉陵江重庆江段及三峡库区的防洪压力,三峡水库配合增加出库调度,避免了库区土地征用线淹没问题,以三峡水库为核心的水库群联合调度的防洪效益显著。In order to study the synergistic flood control effect of reservoir groups, the characteristics of storm flood of the Jialing river are analyzed by analyzing the development process of water and rainfall regime, flood composition and flood restoration in the Jialing River Basin.Through the joint peak-cuting and peak-staggering by water projects in the Jinsha River and the Jialing River basins, the retaining flow coming from upstream of Cuntan Station accounts for 10 % of the total natural incoming flow at Cuntan Station, which alleviates the flood control pressure of the Chongqing reach of the Jialing River and the Three Gorges Reservoir Area.With discharge increasing of Three Gorges Reservoir, the problem of inundation above land requisition lines in the reservoir area is avoided, which reflects the flood control benefits of joint dispatching of reservoir groups with the Three Gorges Reservoir as the core.

关 键 词：水库群联合调度 防洪调度 洪水还原 嘉陵江3号洪水 三峡水库 金沙江下游 

分 类 号：TV697[水利工程—水利水电工程]