| 基于滞后效应和防洪调度的大坝渗流预测模型研究 |
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| 引用本文： | 胡江,郑鹏翔.基于滞后效应和防洪调度的大坝渗流预测模型研究[J].三峡大学学报(自然科学版),2008,30(6). |
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| 作者姓名： | 胡江 郑鹏翔 |
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| 作者单位： | 1. 河海大学,水利水电工程学院,南京,210098;河海大学,水资源高效利用与工程安全国家工程研究中心,南京,210098
2. 中国水电顾问集团华东勘测设计研究院,杭州,310014 |
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| 基金项目： | 国家自然科学基金项目
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国家科技支撑计划项目
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中国水电工程顾问集团公司科技项目
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| 摘 要： | 降雨和库水位对大坝渗流表现出一定的滞后性和非线性,且降雨和库水位之间本身又存在一定的耦合关系,渗流的机理比较复杂.汛期降雨多,管理部门需要对水库库容进行防洪调度,水位变化比较频繁,导致汛期渗流波动较大.分析了水位和降雨对大坝渗流的滞后效应,简要介绍了汛期水库的洪水预报和防洪调度,建立了基于滞后效应和防洪调度下的大坝渗流监控模型.以某拱坝为例,对汛期内的大坝渗流进行了预报,预报精度较好.
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| 关 键 词： | 大坝渗流 滞后效应 防洪调度 模糊神经网络 |
Forecasting Model of Dam Seepage Flow Based on Lagging Effect and Flood Control Operation |
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| Hu Jiang,Zheng Pengxiang.Forecasting Model of Dam Seepage Flow Based on Lagging Effect and Flood Control Operation[J].Journal of China Three Gorges University(Natural Sciences),2008,30(6). |
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| Authors: | Hu Jiang Zheng Pengxiang |
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| Institution: | Hu Jiang1,2 Zheng Pengxiang3 (1.College of Water Conservancy , Hydropower Engineering,Hohai Univ.,Nanjing 210098,China,2.National Engineering Research Center of Water Resources Efficient Utilization & Engineering Safety,3.East China Investigation & Design Institute,CHECC,Hangzhou 310014,China) |
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| Abstract: | Rainfall and water level show lagging effect and nonlinear on dam seepage flow;and the relationship between rainfall and water level is coupled;therefore,the mechanism of dam seepage is very complex.The rainfall in flood period is heavy;the reservoir capacity needs flood control operation during this period;so the reservoir water level changes frequently;and the fluctuation of dam seepage in flood period is large.The lagging effect of water level and rainfall on dam seepage flow is analyzed;and the lagging ... |
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| Keywords: | dam seepage flow lagging effect flood control operation fuzzy neural network |
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