内蒙集宁大理岩地下水数值模拟

发布时间：2018-11-11 12:36

【摘要】：水是人类赖以生存和发展的重要自然资源,也是自然生态环境重要的制约因素。随着社会的进步,经济的发展,水资源的需求量日益增加,使得水资源供需矛盾日益突出,解决水资源危机已成为世界范围的战略性问题之一。乌兰察布市集宁区处于水资源较贫乏地区,据有关资料统计,集宁区现已探明的四个集中供水水源地均已达到开采极限。根据集宁区整体发展规划,城区建设规模将发展为人口100万人,单纯依靠现有的四个水源地,地下水资源量远远不能满足城镇建设工业生产和居民生活用水要求。随着城镇工业生产的发展,对水资源的需求量将日益增大,水资源短缺的问题,已严重制约集宁区的城镇建设及工业生产的发展。因此有必要建立地下水数值模拟模型来定量研究内蒙集宁大理岩地区地下水资源,给地下水资源的合理开发利用和科学管理提供依据,为满足集宁区国民经济发展总体规划与产业结构调整提供水文地质资料。本文通过搜集、分析和整理研究区内已有的地质、水文地质研究成果,分别运用地下水数值模拟软件MODFLOW和GMS构建内蒙集宁大理岩地下水水流模型。通过2001至2011年的地下水动态观测资料,先给定参数和边界初值,通过手动和自动调参对模型进行校正,比较模型计算值与实际观测值的拟合程度,并不断地调试、修正参数初值,达到最好的拟合效果。然后再与2011年的统测水位值进行拟合,以进一步验证模型的可靠性和适应性。识别与验证均达到了很好的效果,表明模型的参数与边界的概化都是合理的,模型可以进行地下水水位预测,并对研究区域进行了地下水动态预测。最后对两个软件在进行地下水数值模拟的操作进行比较,分析并描述了两个软件在应用中各自的优势所在。
[Abstract]:Water is not only an important natural resource for human survival and development, but also an important restriction factor for natural ecological environment. With the progress of society and the development of economy, the demand for water resources is increasing day by day, which makes the contradiction between supply and demand of water resources more and more prominent. Solving the crisis of water resources has become one of the strategic problems in the world. The Jining district of Wulanchabu city is in the poor area of water resources. According to the statistics, the four water sources of concentrated water supply in Jining district have reached the limit of exploitation. According to the overall development plan of Jining District, the scale of urban construction will be 1 million people. Depending on the existing four water sources, the quantity of groundwater resources is far from meeting the requirements of urban construction industry production and residents' domestic water use. With the development of industrial production in cities and towns, the demand for water resources will increase day by day. The shortage of water resources has seriously restricted the construction of towns and the development of industrial production in Jining area. Therefore, it is necessary to establish a numerical simulation model of groundwater to quantitatively study groundwater resources in Jining marble area of Inner Mongolia, which provides the basis for the rational development and utilization of groundwater resources and scientific management. Hydrogeological data are provided for the overall plan of national economic development and adjustment of industrial structure in Jining district. Based on the collection, analysis and collation of the existing geological and hydrogeological research results in the study area, the groundwater flow model of Jining marble in Inner Mongolia is constructed by using the numerical simulation software MODFLOW and GMS, respectively. Based on the groundwater dynamic observation data from 2001 to 2011, the model is corrected by manual and automatic adjustment of parameters and initial boundary values, and the fitting degree between the calculated values of the model and the observed values is compared, and the model is debugged continuously. Correct the initial value of the parameters to achieve the best fitting effect. Then the model is fitted with the measured water level in 2011 to further verify the reliability and adaptability of the model. The results of identification and verification show that the parameters and boundaries of the model are reasonable and the model can be used to predict the groundwater level and the groundwater dynamic prediction is carried out in the study area. Finally, the operation of numerical simulation of groundwater is compared between the two softwares, and the advantages of the two softwares in the application are analyzed and described.
【学位授予单位】：石家庄经济学院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P641.8

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