【摘要】 分析了目前孔隙地下水流三维有限差分数值模拟中对含水层系统三维空间离散存在的问题 ,针对自然界孔隙含水层与隔水层空间分布的不连续性与厚度的不均匀性 ,研究了基于GIS的孔隙含水层系统三维空间离散实现的技术路线 ,提出了基于GIS与不规则六面体元的孔隙含水层系统的三维空间离散方法 ,最大限度地保证了离散体元中含水层类型的单一性 ,提高了孔隙地下水流模拟模型三维空间离散的精度 .更多还原

【Abstract】 By analyzing the problem of hydrological 3D spatial dispersion in 3D finite differential numeric simulation of porous groundwater flow, as well as discontinuous spatial distribution and asymmetric thickness of porous aquiferous strata and partitive groundwater stratum, the paper presents the GIS-based technique of 3D spatial dispersion of porous aquiferous stratum system. Besides, the paper puts forward the 3D spatial dispersion method of irregular hexahedral unit based on GIS to guarantee to the greatest degree the uniqueness of the stratum types among the dispersed units and improve the precision of 3D spatial dispersion.更多还原