摘要
随着新时期南水北调后续工程的高质量发展,首批建设工程引江补汉工程正式开工,为支撑未来南水北调中线水源工程与引江补汉工程的联合协调运行,根据引江补汉工程设计参数,提出多组丹江口水库与引江补汉工程联合调度方式,并模拟分析得到引江补汉工程实施后南水北调中线水源工程可调水量具有重要意义。研究结果表明:设置引江补汉工程补水水位控制线、同步优化陶岔渠首引水调度线,充分利用引江补汉工程补水来满足汉江中下游用水需求,从而置换更多坝前水量引至陶岔渠首、清泉沟等用水需求方,可在一定程度上实现丹江口水库供水与引江补汉工程补水决策的有效衔接;相比于中线一期工程现状供水调度情景,采用合适的引江补汉工程与中线水源工程联合调度方式,可在保障汉江中下游用水量需求的同时,满足下游断面最小用水量达标率至98.9%~99.2%,并提高中线受水区可供水量17.7亿~25.8亿m^(3),继而有效协调中线水源工程的中线受水区、清泉沟渠首及汉江中下游等多方用水需求。
The Middle Route of South-to-North Water Transfers Project(MRSWTP)is a major strategic infrastructure to alleviate the serious shortage of water resources in northern China.The first phase of the MRSWTP has been put into operation since 2014.By the 8th anniversary of the operation of the MRSWTP on December 12,2022,the cumulative water inflow from the head of the Taocha Canal has exceeded 53 billion m^(3),with a direct beneficiary population of more than 85 million people.Thus,the completion and operation of the Middle Route of South-to-North Water Transfers Project(MRSWTP)have significantly improved the water resources conditions and water supply guarantee degree of the cities in the water receiving area of the middle route,and achieved great social and economic benefits.In the face of the needs of the national development strategy in the new era,the supply and demand sides of the water resources allocation of the MRSWTP have changed.On the one hand,with the coordinated development of Beijing-Tianjin-Hebei and the construction of Xiong'an New Area,the water supply objects and scope of the MRSWTP have been expanded and adjusted,and the water transferred from the MRSWTP has become the main water source of large and medium-sized urban areas along the Beijing-Tianjin-Hebei line.The current change of water supply situation puts forward new water transfer requirements for the MRSWTP in terms of water quantity and water supply guarantee.On the other hand,the inter-annual variation of the incoming water from the Hanjiang River basin is large,which has affected the water supply guarantee of the Danjiangkou Reservoir.With the commencement of the construction of the water diversion project from Three Gorges Reservoir to Hanjiang River(WDP-TH),it is very necessary to carry out the research on the joint operation mode of the Danjiangkou Reservoir and the WDP-TH.Based on the design parameters of the WDP-TH,the adjustable water volume of the MRSWTP after the implementation of the WDP-TH is analyzed and four research schemes are put forward as follows:(1)Scheme 1,the current water supply operating scenario of the Danjiangkou Reservoir,which is the benchmark scheme;(2)Scheme 2,the WDP-TH starts to transfer water when the reservoir release can not satisfy the minimum discharge flow requirements of the downstream section;(3)Scheme 3,the water transfer control line of the WDP-TH is added in the water supply operating curves of the Danjiangkou Reservoir,and water transfers rules of Taocha are optimized synchronously;and(4)Scheme 4,the WDP-TH continuously transfers water to the middle and lower reaches of the Hanjiang River throughout the year,and the transfers flow of the Taocha is 420 m^(3)/s.The results show that the effective connection between the water supply of Danjiangkou Reservoir and the water supply decision of the water transfers project can be realized by two schemes,i.e.,Scheme 3 and Scheme 4,both of which can effectively use the water transfers of the WDP-TH to increase the available water supply volume of the MRSWTP(the increment is 1.77 billion m^(3) to 2.58 billion m^(3).)and reduce the reservoir waste water(the decrease is 10.5 billion m^(3) to 14.8 billion m^(3))on the premise of ensuring the water demand of the middle and lower reaches of the Hanjiang River.This research can provide technical support for the adjustment of the water transfer mode of the MRSWTP after the completion of the WDP-TH in the future,and realize effective connection between the above two projects.
作者
许继军
张晓琦
周涛
李清清
尹正杰
王永强
XU Jijun;ZHANG Xiaoqi;ZHOU Tao;LI Qingqing;YIN Zhengjie;WANG Yongqiang(Changjiang River Scientific Research Institute of Changjiang Water Resources Commission,Wuhan 430010,China;Hubei Provincial Key Laboratory of Basin Water Resources and Ecological Environment,Wuhan 430010,China)
出处
《南水北调与水利科技（中英文）》
CAS
CSCD
北大核心
2023年第4期790-799,共10页
South-to-North Water Transfers and Water Science & Technology
基金
2021水利部重大科技项目(SKR-2022006)。
关键词
可调水量
引江补汉工程
南水北调中线工程
供水保障
引水流量
adjustable water volume
water transfers from Three Gorges Reservoir to Hanjiang River
Middle Route of South-to-North Water Transfers Project
water supply guarantee
transfer flow
作者简介
许继军(1971-),男,湖北武汉人,正高级工程师,博士,主要从事水文水资源、水资源管理等方面研究。E-mail:xujj07@163.com;通信作者:张晓琦(1993-),女,湖北武汉人,工程师,博士,主要从事水资源规划、水库调度与水资源配置等方面研究。E-mail:zhangxq@mail.crsri.cn。
