淮河中上游闸坝建设的水量水质变化效应研究

发布时间：2018-02-03 19:04

本文关键词： 淮河流域闸坝水文序列变异 MIKE11 水量水质　出处：《郑州大学》2017年硕士论文　论文类型：学位论文

【摘要】：闸坝建设可以调节水资源的时空分布,在防洪、灌溉、发电、航运等方面发挥着重大的经济效益。但是,由于闸坝的建设,人为的截断河流,改变着河流的水量水质状况,影响着径流的年内及年际分配情况,同时在流域内引发一系列的水环境效应。因此,有必要对闸坝建设对水文序列变异的影响开展深入研究,通过构建水动力模型及水质模型,模拟分析闸坝建设对河流水量水质变化过程的影响,对于通过优化闸坝调度消除闸坝建设对水量水质产生的不利影响具有重要意义,同时,在高效利用及合理配置水资源、协调经济社会发展,保护水生态环境等发面发挥着重要作用。本文在分析国内外水文序列变异研究及闸坝建设的环境效应研究进展的基础上,选取闸坝建设众多的淮河中上游流域为研究区,针对闸坝建设对水量水质变化效应的影响进行深入的研究,主要研究内容如下:(1)选取淮河流域蚌埠闸以上区域为研究区,在研究区内选取11个监测站1960~2010年的径流序列进行水文序列变异分析,主要对径流序列进行趋势检验和突变检验。根据趋势和突变的检验结果,对发生水文序列变异的监测站进行深入分析,分别从降水变化、下垫面、闸坝建设等方面分析影响水文序列变异的主要因素。(2)为研究闸坝建设对水量水质变化的具体影响,从可能发生显著性突变的监测站中分别选择王家坝闸、周口闸、阜阳闸、蚌埠闸等水闸构建闸控河段水动力模型和水质模型。运用模型模拟淮河中上游河流的流量和水质变化过程,并结合实测数据,对模型进行参数率定和模型验证。(3)通过情景分析和数值模拟,模拟不同来水条件、有无闸坝建设、闸门开度变化等多种情景下河流流量及水质的变化过程,多情景组合对比分析并总结研究区水量水质的变化状况。
[Abstract]:Sluice dam construction can adjust the spatial and temporal distribution of water resources, which plays an important role in flood control, irrigation, power generation, shipping and so on. However, due to the construction of the dam, the river is cut off artificially. It changes the quantity and water quality of the river, affects the annual and interannual distribution of runoff, and causes a series of water environmental effects in the river basin at the same time. It is necessary to deeply study the influence of dam construction on the variation of hydrological sequence. By constructing hydrodynamic model and water quality model, the influence of dam construction on the process of river water quality change is simulated and analyzed. It is of great significance to eliminate the adverse effects of dam construction on water quantity and water quality through optimizing dam dispatching. At the same time, it is necessary to coordinate the economic and social development in the efficient utilization and rational allocation of water resources. Protection of water ecological environment plays an important role. Based on the analysis of hydrological series variation and environmental effects of dam construction at home and abroad. Select many floodgate dams to build the middle and upper reaches of the Huaihe River as the study area, the impact of dam construction on the water quantity and water quality of the effect of in-depth research. The main research contents are as follows: (1) the area above Bengbu sluice in Huaihe River basin is selected as the study area, and the runoff sequence of 11 monitoring stations from 1960 to 2010 is selected to analyze the variation of hydrological sequence in the study area. According to the test results of trend and mutation, the monitoring stations with variation of hydrological series are analyzed in depth, respectively from precipitation change, underlying surface. In order to study the concrete influence of dam construction on water quantity and water quality, Wangjiaba sluice is selected from the monitoring station that may have significant abrupt change in order to study the concrete influence of dam construction on the variation of hydrological sequence. Zhoukou sluice, Fuyang sluice, Bengbu sluice and other sluices are used to build the sluice control reach hydrodynamic model and water quality model. The model is used to simulate the flow and water quality change process of the middle and upper reaches of the Huaihe River, and combined with the measured data. Through scenario analysis and numerical simulation, the paper simulates the construction of sluice dams under different water conditions. The changing process of river discharge and water quality under many scenarios, such as gate opening change, is analyzed and summarized.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：X52;TV135

【相似文献】