郑州市航空港供水水源地地下水资源评价

发布时间：2019-03-19 16:06

【摘要】：作为生态系统的重要组成部分的地下水，是维持水系统良性循环的的重要保证。随着都市化、工业化的快速发展，地下水已成为我国重要的供水水源之一。然而在以地下水作为主要水源的我国北方城市，可利用的地下水水量衰竭日益严重，这主要是由于地下水的过度开采和污染造成的。地下水作为我国长期利用的淡水资源，由于其自身的特性，必须科学合理的利用，因此需要在利用之前对地下水进行资源评价。航空港位于新郑市西北的薛店镇，以新郑国际机场为核心，带动相关产业发展的科、工、贸、物流配送协调发展的经济强区。随着航空港区的迅速发展，一批大型生产性知名企业先后落户，，因此提高工业、生活用水的供应能力已成为发展的迫切需要。本文系统分析在研究区域内的地质和水文地质条件，以确定供水区范围内中深层地下水的水文地质条件，弄明该处地下水的补给、径流、排泄条件及其动态变化规律，建立数学模型，预测在地下水开采期间水位的变化趋势，利用二维有限元法、解析法评价地下水可允许的开采水量，针对可否用于生活饮用水对中深层处地下水进行水质评价，为建立供水水源地开采提供科学依据。使用Visual Modflow软件模拟研究区域未来的地下水降深，预测在不同开采条件下的变化，利用数值法和解析法对地下水资源量进行了评价。结果表明在机场以北按1.8万m3/d开采，可以满足开采5年的要求，但不能满足3.0万m3/d的开采量，而在航空港规划区内，开采量为1.5万m3/d，满足开采20年的要求。
[Abstract]:As an important part of ecosystem, groundwater is an important guarantee to maintain a virtuous cycle of water system. With the rapid development of urbanization and industrialization, groundwater has become one of the important water supply sources in China. However, in the northern cities of China, where groundwater is the main water source, the depletion of available groundwater is becoming more and more serious, which is mainly due to the excessive exploitation and pollution of groundwater. Groundwater as a long-term use of freshwater resources in China, due to its own characteristics, must be used scientifically and reasonably, so it is necessary to evaluate groundwater resources before utilization. The airport is located in Xuedian Town, northwest of Xinzheng City. It takes Xinzheng International Airport as the core and promotes the coordinated development of related industries in the area of economic strength of science, industry, trade and logistics distribution. With the rapid development of aviation port area, a number of large-scale and productive well-known enterprises have been settled one after another. Therefore, improving the supply capacity of industrial and domestic water has become an urgent need for development. In this paper, the geological and hydrogeological conditions in the study area are systematically analyzed in order to determine the hydrogeological conditions of the middle and deep groundwater in the water supply area, and to find out the groundwater recharge, runoff, discharge conditions and their dynamic changing laws. A mathematical model is established to predict the changing trend of water level during groundwater exploitation. The allowable groundwater quantity is evaluated by two-dimensional finite element method and analytical method, and the water quality of middle and deep groundwater is evaluated in view of whether it can be used for drinking water. It provides a scientific basis for the establishment of water supply source area mining. The Visual Modflow software is used to simulate the groundwater depth in the future and predict the change under different mining conditions. The groundwater resources are evaluated by numerical method and analytical method. The results show that to the north of the airport, mining at 18000 m3 / d can meet the requirement of 5 years, but not 30000 m3 / d, whereas in the airport planning area, the production volume is 15000 m ~ 3 / d, while in the airport planning area, the mining capacity is 15000 m ~ 3 / d, which is less than 30000 m ~ 3 / d in the north of the airport. Meet the requirements of 20 years of mining.
【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】：2014
【分类号】：P641.8

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