中文摘要：

针对MODFLOW处理承压含水层中混合开采井流量在各层分配上存在的问题,提出了流量权重迭代计算方法。该方法不仅考虑各含水层渗透性差异,而且考虑了抽水井周围水头差对含水层流量的贡献。以三维非稳定流理想模型为例,通过对各单元网格的水头和抽水井所处各层流量权重的双重迭代求解,得出非均质承压含水层中各层井流量的分配量。在此基础上,进一步分析不同网格剖分对混合机井各层流量计算的影响及其井水位的校正。

英文摘要：

An iterative method of calculating the allocation weight of well flow discharge in the vertical heterogeneous aquifer is proposed to solve the problem in MODFLOW dealing with the allocation of the pumping discharge in each water-bearing stratum with mixed exploitation. The new method takes into account not only the influence of differences of water heads around the pumping well in each water-bearing stratum but also the differences of hydraulic conductivity. An ideal 3-D transient flow is used to calculate the allocation of pumping flow discharge in each heterogeneous water-bearing stratum by using the double iterative method. Modification of grid size influence on the allocation of pumping flow discharge and the well water level from MODFLOW computation is investigated further in this study.