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为科学合理地进行陕西省咸阳市城区地下水开采、水位预报以及地面沉降防治,文章在系统分析咸阳城区水文地质条件的基础上,确定了研究区范围、边界条件以及相关的水文地质参数,利用地下水流模拟软件Visual Modflow建立研究区数值模型,并根据实测点的动态水位资料对模型进行参数识别和验证,利用识别验证后的模型预测了咸阳城区潜水水位的变化趋势,结果表明,在现状开采条件下,研究区潜水处于负均衡状态,均衡差为-37m3·d-1,在线性增加开采条件下,研究区东北部潜水水位持续下降,降落漏斗有扩大趋势,未来应加强对区域水资源开采的管控。该研究为潜水资源的开采、水文地质灾害防治以及土地工程相关业务的开展提供了科学的依据。
In order to scientifically and reasonably carry out the groundwater exploitation, water level forecasting and land subsidence prevention and control in Xianyang City, Shaanxi Province, the article has systematically analyzed the hydrogeological conditions of Xianyang urban area, and has determined the scope of the study area, boundary conditions and related hydrogeological parameters, Flow simulation software Visual Modflow to establish the numerical model of the study area and parameter identification and verification of the model based on the dynamic water level data of the measured point. The change trend of the diving water level in Xianyang urban area is predicted by the model of identification and verification. The results show that under the current mining conditions Under the linear increase of mining conditions, the diving water level in the northeast of the study area continued to decline, and the dropping funnel had an expanding trend. In the future, it is necessary to strengthen the regional water resources exploitation Control. The study provides a scientific basis for the exploitation of submarine resources, prevention and control of hydrogeological hazards and the development of land-related projects.