【摘要】 在对某大型灌区水文地质条件进行分析的基础上,以灌域为基本单位,用Visual Modflow进行参数率定,确定水文地质参数,建立了地下水三维非稳定流模型。利用此模型进行地下水集中开采的数值模拟,确定了合适的开采方案。结果表明,文章分析方法结果合理,具有较高的预测精度和潜在的实用价值。更多还原

【Abstract】 A 3D groundwater flow model is built based on analysis of hydro-geological conditions of a large-sized irrigation district,and all the parameters are determined by Visual Modflow in each of the 5 sub-areas of the irrigation district.The reliability of the model is tested by long-term historical groundwater monitoring data and the model is then used for the numerical simulation of centralized groundwater exploitation.It is shown that the analysis method used in the simulation is reasonable and the simulation result has high forecast precision and potential practical values.更多还原