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入库洪水随机模拟及期望概率的研究
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摘要
本论文以广西红水河龙滩水电站为例,在第一篇中采用洪水过程线法计算了给定设计频率为0.01%、0.1%、0.2%和1%的坝址设计洪水,并利用合成流量法计算了相应设计频率的入库设计洪水。根据计算成果对该库不同时段的坝址设计洪水值和入库设计洪水值进行比较分析。第二篇中选择龙滩坝址以上流域的四个站,通过建立多维自回归模型对其日流量进行随机模拟,然后对模型和模拟生成的洪水系列进行仿真效果检验。结果表明在此流域利用此多维自回归模型进行随机模拟是合理的。
     我们传统的水文频率计算方法一般都是假定总体服从P-Ⅲ型分布,然后采用适线法根据样本估计参数,进而推求设计值。然而,由此求得的设计值,其期望概率远远大于设计标准。这是我国水利工程频繁发生水文意义上破坏的主要原因之一。采用计算频率概念和方法是解决这个问题的重要途径之一。本文第三篇讨论了基于期望概率概念推求各种总体相应于1%及0.1%的设计值的方法,并且得到不同样本容量的Cs和计算频率的相关图,分析其变化规律,为理论研究及生产应用作一些初步探讨。
In this paper, we use the dates of Long-tan water power station on Hong-shui River in Guang-xi province. In the first part ,we compute the site design flood of given design frequency (0.01%. 0.1%. 0.2% and 1%) using the design flood hydrograph .Then we get the design reservoir inflow flood of the same design frequency by the resultant discharge method .According to the computing value we compare the site design flood and design reservoir inflow flood of different time interval. In the second part, we choose four stations on the basin which up the Long-tan dam-site, and estimate a multidimensional auto regression model to model the daily discharge .Then test the model and the simulate effect of the modified flood series. The result indicate that using this multidimensional auto regression model on the basin to stochastic simulate the daily discharge is rational.
    The tradition hydrology frequency computation method is supposed that the universe is following the P-III distribution. Using the method of curve-fitting to estimate parameters according samples, and then get the design value. However the design value getting from this method which expectation frequency is larger than the design normal. This is one of the main reasons that the hydraulic engineering works in our country always have been broken in hydrology mean. To study the conception and method of calculation frequency is one of the most ways to solve the problem. The third part in this article has discussed the method which is based on the expectation frequency and use which we get the design value of 1% and 0.1% for some universes. And we also get the correlation diagram of Cs and calculation frequency of different sample sizes. Then we analyze the variation rule to get the primary discussion for the theory study and production.
引文
[1] 丁晶.论洪水随机模拟方法.第五次全国水文学术会议论文集[C].北京:科学出版社1992
    [2] 焦菊英.国内径流随机模拟研究[J].水土保持通报,1998(12):76~80
    [3] 袁鹏,王文圣,丁晶.洪水随机模拟的非参数扰动最近邻自展模型.四川大学学报,2000.1:82~86
    [4] 刘权授.水文随机模型[M].南京:河海大学,1987年
    [5] 吕孙云 袁鹏 戴明龙.随机模拟法在澜沧江流域地区洪水组成中的应用[J].东北水利水电,2003(3):1~3
    [6] 刘光文.水文分析与计算[M].南京:河海大学,1994
    [7] 陈桂亚.缺乏水文资料的入库洪水计算[J].人民长江,2000(8):21
    [8] 郑金丰.入库洪水分析及计算的认识[J].塔里木农垦大学学报,1996(5):75~77
    [9] 陈元芳.随机模拟中模型与参数不确定性影响的分析[J].河海大学学报,2000(1):32~35
    [10] 陈元芳.随机模型参数估计及洪水随机模拟研究[D]:[学位论文].南京:河海大学,1992.
    [11] 丛树铮.关于水库设计标准问题[J].华东水利学院学报,1978(1):1~14
    [12] 刘治中,王俊德,丛树铮.P-Ⅲ型分布的期望概率计算[J].河海大学学报.1989(4):59~64
    [13] 丛树铮.破坏概率一般计算公式及其潜在应用[J].水电能源科学.1985.3(2):149~160
    [14] 丛树铮.长江三峡工程设计洪水期望概率研究[J].河海大学学报.1988.16(3):1~10
    [15] H. Cramer. Mahematical Methods of Statistics. 1946
    [16] 丛树铮.国内外期望概率研究述评[J].华水科技情报.1985(2)
    [17] 黄振平.水文统计原理[M].南京:河海大学出版社,2002
    [18] 龙滩水电站入库设计洪水研究.国家电力公司中南勘测设计研究院.2002
    [19] 丛树铮等.水文学的概率统计基础[M].水利出版社.1981
    
    
    [20] 刘光文.皮尔逊Ⅲ型分布参数估计[J].水文.1990.4
    [21] 丁晶.论随机水文模型的适用性[C].首届全国水利水电系统应用概率统计学术讨论会文集.1985.
    [22] 丛树铮.随机模拟在水资源系统规划中的几个问题[C].首届全国水利水电系统应用概率统计学术讨论会文集.1985.
    [23] Easterling, R.G. Goodness of fit and parameter estimateion [J]. Technometrics, 19?6(18):1~9
    [24] A. Allen Bradley and K.W. Potter, A New Approach for Flood Frequency Anlysis of simulated flows [J] .W.R.R. 1991
    [25] Kavas. M.L. and J.W. Petler, A Statistic Analysis of the Daily Streamflow Hydrolgraph [J] ,Journal of Hydrology. 1984
    [26] Hipel K.W, Time Series Analysis perpective [J] ,W.R.R vol 21.
    [27] 胡康萍.水文时间序列的若干进展[J].水文.1985(4)
    [28] 陈元芳,丛树铮.水文极值系列相关展延方法及条件的研究[J].河海大学学报.1988(3)
    [29] 丛树铮,徐映波.随机模拟在水资源系统规划中的几个问题[C].首届全国水利水电系统应用概率统计学术讨论会文集
    [30] 杜金观,项静恬.时间序列分析—建模与预报[M].安徽教育出版社,1991
    [31] 安鸿志,顾岚.回归模型的预报与建模[M].气象出版社,1986
    [32] 朱元生.洪水频率计算该往何处去[J].河海科技进展,1991(5)
    [33] 丛树铮,谭维炎.水文频率计算中参数估计方法的统计试验研究[J].水利学报,1980(3)
    [34] 问德溥.水文资料的多站生成方法[C].水文水资源论文选.水利电力出版社.1985
    [35] Mat, N.C, Mathematical Assessment of Synthetic Hydrology[J],Water Resour Res, Vol. 3, No. 4,1967
    [36] 王梓坤.随机过程论[M].科学出版社,1965
    [37] Beard.L.R.Probability estimates based on Small Normal distribution Samples.Journal of Geophysical Research.Vol.65.NO.7.1960

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