秦淮东河工程防洪调度方案研究
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摘要
秦淮东河工程是秦淮河流域下游新开的分洪道工程,该工程将有效缓解秦淮河流域行洪出路不足的问题。在研究过程中,采用MIKE11软件,搭建了秦淮河流域及秦淮东河水文水动力耦合模型,借助于该模型,对雨前预降、武定门闸控泄以及东河单线行洪等工程调度方案的合理性及防洪效益进行了定量分析。分析结果表明:雨前预降对流域防洪效益较小;武定门闸控泄需兼顾到对上下游的合理调度;在流域降雨较小时,东河单线行洪方案具有可行性。
The East Qinhuai River is a new floodway built at the lower reaches of the Qinhuai River basin, which helps tackle the peak flood discharge problem of the Qinhuai River. We established a coupled hydrology-hydrodynamics model of the Qinhuai River basin and the East Qinhuai River using MIKE11 software, and then conducted a quantitative analysis on the feasibility and flood control benefit of the engineering dispatching solutions, such as lowering water levels prior to rainfall, control of Wudingmen sluice gate and single-way flood discharge by the East Qinhuai river project. The results showed that lowering the water levels prior to rainfall has little effects on flood control; when operation of Wudingmen sluice gate should take into account the upstream and downstream flood discharge; single-way flood discharge scheme by the East Qinhuai River is effect for low rainfall in the basin.
The East Qinhuai River is a new floodway built at the lower reaches of the Qinhuai River basin, which helps tackle the peak flood discharge problem of the Qinhuai River. We established a coupled hydrology-hydrodynamics model of the Qinhuai River basin and the East Qinhuai River using MIKE11 software, and then conducted a quantitative analysis on the feasibility and flood control benefit of the engineering dispatching solutions, such as lowering water levels prior to rainfall, control of Wudingmen sluice gate and single-way flood discharge by the East Qinhuai river project. The results showed that lowering the water levels prior to rainfall has little effects on flood control; when operation of Wudingmen sluice gate should take into account the upstream and downstream flood discharge; single-way flood discharge scheme by the East Qinhuai River is effect for low rainfall in the basin.
引文
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[3] 缪大宏,吴玉明,王献辉,等.秦淮东河工程与南京城市防洪关系研究[J].江苏水利,2014(9):4-7.
[4] 吴永新,郑恩才.秦淮河洪水灾害分析及对策思考[J].江苏水利,2010(8):10,13.
[5] 王献辉,花剑岚,李萍.南京市特大暴雨分析及城市防洪对策思考[J].水利规划与设计,2015(11):24-26,41.
[6] 杨红卫,奚肖亚.秦淮东河工程规划方案及其综合效益[J].城市道桥与防洪,2012,8(8):19-23.
[7] 张晓峰,缪大宏.南京市秦淮东河规划建设探讨[J].水利经济,2013,31(3):49-53.
[8] 李伟,刘冬梅,赵博.河闸泄流特性及对应洪水淹没范围模拟试验研究[J].人民长江,2016,47(18):96-100,105.
[9] 王领元.丹麦MIKE11水动力模块在河网模拟计算中的应用研究[J].中国水运(学术版),2007(2):106-107.
[10] 李建柱.流域产汇流过程的理论探讨及其应用[D].天津:天津大学,2008.
[11] Danish Hydraulic Institute(DHI).MIKE11:A modelling system for rivers and chalmels reference manual[R].DHI,2004.
[12] 芮孝芳,姜广斌.产流理论与计算方法的若干进展及评述[J].水文,1997(4):16-20.
[13] 万洪涛,万庆,周成虎.流域水文模型研究的进展[J].地球信息科学,2000(4):46-50.
[14] 王船海,王娟,程文辉,等.平原区产汇流模拟[J].河海大学学报(自然科学版),2007(6):627-632.
[15] 王领元.应用MIKE对河流一、二维的数值模拟[D].大连:大连理工大学,2007.
[16] 徐卫红.洞庭湖区复杂防洪系统数值模拟模型研究与应用[D].北京:中国水利水电科学研究院,2013.
[17] 钟平安.流域实时防洪调度关键技术研究与应用[D].南京:河海大学,2006.
[18] 葛忆,张新义,赵齐.句容市秦淮河流域防洪调度分析及对策研究[J].江苏水利,2016(4):44-46.
[19] 曹宇航,袁文秀,李卫东,等.基于MIKE11模型的平原感潮河网城市防洪规划研究[J].中国农村水利水电,2017(4):17-21.
[20] 刘玲,余生.临淮岗枢纽实时控泄流量计算初步分析[J].治淮,2008(1):30-31.