摘要
为充分发挥东平湖水库综合效益,提高水库水安全保障韧性,按照“以时间换空间”的思路,提出利用东平湖富余库容调蓄南水北调东线来水的方案。结果表明:东平湖1956-2016年月平均富余调节库容1.17亿m^(3),在大汶河来水偏枯、东平湖水位较低年份利用东平湖富余库容调蓄南水北调东线来水是可行的;对比分析基准方案和2种方案实施后对湖周用水保证率、东平湖需水量、入黄水量、工程安全的影响后,得到东平湖库容调蓄的最优方案。该方案不占用大汶河水指标,同时最大增加了南水北调东线调蓄库容3.62亿m^(3),提高了调度灵活性,为南水北调东线二期供水效益提升提供了新思路。
Global climate change and human activities,have led to a significant rise in the occurrence and intensity of extreme hydrological events in the basin.To deal with this situation and ensure the security of the country’s water supply,the national water network project was proposed.The South-to-North Water Transfers Project served as the primary framework to achieve this objective.Since the implementation of the Eastern Route of the South-to-North Water Transfers Project,water security has been significantly improved.However,Dongping Lake,as an important node reservoir and the last stage of regulation reservoir of the Eastern Route of the South-to-North Water Transfers Project,was underutilized for a comprehensive reservoir.To enhance the water supply benefit of the second phase of the Eastern Route and the resilience of the water resources system to extreme events,a new scheme was proposed by the surplus storage capacity of Dongping Lake to regulate water inflow into the lake.First,the concept of surplus storage capacity was defined,and the value of surplus storage capacity and variation were analysed according to the parameters of discharge into the lake,water consumption around the lake and the evapotranspiration loss of Dongping Lake Reservoir.Second,based on the principle of reservoir water balance,sequential logic of multi-source joint dispatching decision and multi-objective optimisation,different regulation schemes of Dongping Lake were proposed for the second phase of the South-to-North Water Transfers Project.The optimal storage scheme of Dongping Lake was recommended by comparing the application effects of different implementation schemes according to the influence of the guarantee rate of water consumption around the lake,the water demand of Dongping Lake,the water inflow into Yellow Lake and the safety of engineering.The optimal storage scheme could provide a concrete reference for the actual operation and management of the Dongping Lake Reservoir.The results show that:the average monthly surplus stor
作者
王林威
苏柳
谭培影
明广辉
WANG Linwei;SU Liu;TAN Peiying;MING Guanghui(Yellow River Engineering Consulting Co.,Ltd,Zhengzhou 450003,China;Key Laboratory of Water Management and Water Security for Yellow River Basin(Ministry of Water Resources),Yellow River Engineering Consulting Co.,Ltd,Zhengzhou 450003,China;Postdoctoral Research Station of Hydraulic Engineering,China Institute of Water Resources and Hydropower Research,Beijing 100048,China)
出处
《南水北调与水利科技（中英文）》
CAS
CSCD
北大核心
2024年第3期445-454,共10页
South-to-North Water Transfers and Water Science & Technology
基金
国家重点研发计划项目(2021YFC3200203)
河南省重大科技专项项目(201300311400)。
关键词
富余库容
调度规则
综合效益
东平湖
南水北调工程
surplus storage capacity
scheduling rule
benefit of comprehensive utilization
Dongping Lake
Southto-North Water Transfers Project
