引用本文:向锋,施勇,金秋,栾震宇,张庆梓.洞庭湖枢纽调度方案比对分析[J].水利水运工程学报,2018,(2):19-25
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洞庭湖枢纽调度方案比对分析
向锋1, 施勇2, 金秋2,3, 栾震宇2, 张庆梓4
1.长江勘测规划设计研究院，湖北武汉;2.南京水利科学研究院，江苏南京;3.河海大学水利水电学院，江苏南京;4.河海大学水文水资源学院，江苏南京
摘要:
城陵矶综合枢纽的运行初步拟定了5个比选调度方案。针对这5个方案，依托长江中下游一二维水沙模型，建立洞庭湖四口河系四水尾闾河网水沙数值模型，对城陵矶建闸及其调度后的影响开展研究。计算结果表明，城陵矶建闸运行后，洞庭湖全湖区域泥沙淤积量随着闸上运用水位的升高而增加，七里山闸下河段泥沙淤积量减少甚至略有冲刷；城陵矶闸上洪峰水位升高0.03～0.05 m，洪峰流量减少142～330 m3/s，汉口站的洪峰水位变化不大，洪峰流量减少93～141 m3/s；如采用优选调度方案3，则洞庭湖24垸分洪量增加0.10亿m3，洪湖分洪区分洪量减少1.40亿m3，武汉附近区和鄱阳湖附近区分洪量分别减少0.94和0.75亿m3
关键词:  冲淤变化  超额洪量  水沙模型  城陵矶综合枢纽
DOI：
分类号:TV6; P338
基金项目:国家重点研发计划项目（2017YFC0405303）; 水利部公益性行业科研专项（201301080，201401046）
Comparison and analysis of operation schemes for Dongting Lake hydroproject
XIANG Feng1, SHI Yong2, JIN Qiu2,3, LUAN Zhenyu2, ZHANG Qingzi4
1.Changjiang Institute of Survey, Planning, Design and Research Institute, Wuhan;2.Nanjing Hydraulic Research Institute, Nanjing;3.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing;4.College of Hydrology and Water Resources, Hohai University, Nanjing
Abstract:
Five operation schemes for comparison and selection were drawn up for the Chenglingji comprehensive hydroproject in this study. Based on the one and two-dimensional model for water-sediment in the middle and lower reaches of the Yangtze River, the water-sediment numerical model for the four inlets and four lower reaches of the Dongting Lake is established to study the influences of construction and operation of the Chenglingji sluice. The calculation and analysis results show that when the Chenlingji sluice is finished, the sedimentation of Dongling Lake is increasing with the increase of the water level, but the sedimentation in the Qilishan sluice downstream reaches is reducing and even scouring. The flood peak level of the Chenglingji sluice is rised by 0.03-0.05 m and the peak discharge is reduced by 142-330 m3/s. The flood peak level of the Hankou sluice has little change while the peak discharge is reduced by 93-141 m3/s. The operation scheme NO.3 as an option is finally selected for calculation. The calculation results show that 24 flood diversion areas of the Dongting Lake has increased by 0.1 million m3, the flood diversion discharge in the Honghu Lake is reduced by 140 million m3, and the flood diversion discharge in the vicinity of Wuhan and Poyang Lake are reduced by 0.94 billion m3 and 50.5 million m3 respectively.
Key words:  Erosion-deposition variation  excess flood volume  water-sediment model  Chenglingji comprehensive hydroproject
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