均质各向异性土层中轴对称渗流问题的分析

对于均质各向异性土层中的轴对称渗流问题,也同平面问题一样,可取缩放渗流场比尺的方法解题,但其结果不同于平面问题。按研究结果:如缩小径向尺度,则缩小后渗流场的等效渗透系数为横向渗透系数kh;如放大轴向尺度,则放大后渗流场的等效渗透系数为平均渗透系数√khkv。

Analysis for axisymmetric seepage flows in homogeneous and anisotropic strata

The axisymmetric flows in anisotropic porous medium could be solved by the same method used in plan flows,that was,reducing the horizontal dimension or enlarging the vertical dimension of the field.But the results were different from those of the plan problems.According to the research results,if the radial dimension was reduced,the equivalent permeability coefficient of the reduced field was the horizontal permeability coefficient kh;and if the axial dimension was enlarged,the equivalent permeability coefficient of enlarged field was the mean permeability coefficient √kh kv.