【摘要】 运用Visual Modflow建立了某灌区地下水三维非稳定流模型。经过模型检验、参数反演,确定了水力参数和入渗补给系数。进而对灌区地下水的集中可持续开采进行了数值模拟和预测,在满足地下水位控制标准的前提下,确定最佳的开采方案。结果显示,该方法计算方便,结果合理,且预测精度较高,可为灌区地下水开采提供参考。更多还原

【Abstract】 A three-dimensional transient flow model was set up by use of Visual Modflow to simulate the groundwater in a irrigation area.The hydraulic parameters and infiltration supplement coefficient are ascertained by model testing and parameter inversion.Numerical simulation and prediction is conducted for the centralized sustainable exploitation of groundwater in this irrigation area.The optimal exploitation scheme is determined with the groundwater level controlled up to standard.It is shown that this method renders convenient calculation,rational results,high prediction precision,and its outcome can provide reference for groundwater exploitation in irrigation area.更多还原