| Summary: | 碩士 === 國立雲林科技大學 === 環境與安全工程技術研究所 === 87 === In the study, the isotropically exponential model of hydraulic conductivity distribution in saturated soils is assumed. An investigation of the spatial structure of subsurface parameters is therefore done with the exponential model of the distribution.
The isotropic characters of the correlation of log K distribution can be found. However, the spatial structure of groundwater velocity is anisotropic. For one-dimensional Euclidean system, since flow has to obey the mass conservative, there doesn''t exist correlation function of the velocity. In the two-dimensional system, it is found that the large positive correlation range of the perturbation of velocity in main flow direction is accursed at the direction angle( ) being equal to 0. Also, the large correlation range of perturbation of lateral velocity is at . For the three-dimensional system, the large positive correlation range of is at ; the one of is at and lateral directional angle ( ) being equal to ; the one of is at and =0.
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