南水北调工程突发性水污染及防洪预警研究

发布时间：2018-05-24 09:30

本文选题：南水北调 + 水质安全　；参考：《大连理工大学》2014年硕士论文

【摘要】：南水北调工程的安全运行涉及到工程基础设施安全、水量安全、水质安全及防洪安全等方面,其中水质安全是工程的最终目的和根本落脚点,是决定工程成败的关键因素,这是由南水北调工程的性质所决定的。为确保南水北调工程输水水质的安全,本文分别对南水北调东线工程和中线工程的突发性输水水质风险进行了评估,指出各自存在的水质风险因素类型,并对卫星遥感降雨信息在无地面观测资料中小流域防洪预警中的应用进行了探讨。主要研究内容及取得的成果如下： (1)对南水北调东线工程进行了水质风险分析,归纳总结威胁东线工程输水水质安全、引发突发性水污染事件的水质风险因素类型。分析选取淮安段作为南水北调东线工程典型渠段的原因,并对其分为4种可能情景进行模拟分析,研究针对突发性水污染事件的应急调控手段和措施。 (2)对南水北调中线工程进行了水质风险分析,归纳总结威胁中线工程输水水质安全、引发突发性水污染事件的水质风险因素类型。分析选取京石段作为南水北调中线工程典型渠段的原因,并对其分为3种可能情景进行模拟分析,研究针对突发性水污染事件的应急调控手段和措施。 (3)以丹江口水库流域为研究区域,选取2009-2012年7-9月为研究时段,利用中国气象科学数据共享服务网上的地面雨量站降水资料数据集,对国家卫星气象中心研发的风云2D卫星的6h降水估计产品PRE的精度进行了分析,分为单站点降雨量精度评估和流域面雨量对比分析。结果表明卫星估计的精度较高,估测能力较强,能有效估测降雨量及降雨趋势。以南水北调中线总干渠沿线河北省境内4个中小流域为例,对将卫星遥感降雨信息初步应用于中小流域的防洪预警中进行了探讨,结果表明将卫星遥感降雨信息应用于无地面观测资料中小流域的防洪预警中具有一定的可行性。最后对全文进行了总结,并对有待进一步深入研究的问题进行了探讨。
[Abstract]:The safe operation of the South-to-North Water transfer Project involves the safety of engineering infrastructure, water quantity, water quality and flood control, among which the safety of water quality is the ultimate goal and fundamental foothold of the project, and the key factor determining the success or failure of the project. This is determined by the nature of the South-to-North Water transfer Project. In order to ensure the safety of water quality in the South-to-North Water transfer Project, this paper evaluates the sudden water quality risk of the South-to-North Water transfer Project in the East Route Project and the Middle Route Project, and points out the types of water quality risk factors. The application of satellite remote sensing rainfall information in small watershed flood control early warning without ground observation data is discussed. The main contents and results of the study are as follows: This paper analyzes the water quality risk of the East Route of South-to-North Water transfer Project, and summarizes the types of water quality risk factors that threaten the water quality safety of the East Route Project and cause sudden water pollution events. This paper analyzes the reasons why Huaian section is selected as a typical channel section of South-to-North Water transfer East Line Project, and divides it into four possible scenarios to simulate and analyze, and to study the emergency control measures and measures for sudden water pollution incidents. 2) the water quality risk of the middle route project of South-to-North Water transfer Project is analyzed, and the types of water quality risk factors which threaten the safety of water quality and cause the sudden water pollution event are summarized. This paper analyzes the reason why Jingshi section is selected as the typical channel section of the middle route of South-to-North Water transfer Project, and divides it into three possible scenarios to simulate and analyze, and to study the emergency control methods and measures for the sudden water pollution event. Taking the Danjiangkou Reservoir Basin as the study area, the precipitation data set of surface rainfall stations on the China Meteorological Science data sharing Network is used to select the 2009-2012 July-September period as the study period. The accuracy of PRE, a 6h precipitation estimation product of Fengyun 2D satellite developed by the National Satellite Meteorological Center, is analyzed, which can be divided into single station rainfall accuracy evaluation and watershed area rainfall comparison analysis. The results show that the accuracy of satellite estimation is high and the estimation ability is strong. It can effectively estimate rainfall and rainfall trend. Taking four small and medium-sized watersheds in Hebei Province along the main trunk channel of South-to-North Water diversion Project as an example, the application of satellite remote sensing rainfall information to flood control and early warning of middle and small watersheds is discussed. The results show that it is feasible to apply satellite remote sensing rainfall information to flood control and early warning of small watershed without ground observation data. Finally, the paper summarizes the full text and discusses the problems to be further studied.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：X52;TV68

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