地下水学会誌
Online ISSN : 2185-5943
Print ISSN : 0913-4182
ISSN-L : 0913-4182
Laboratory Determination of Transverse and Longitudinal Dispersion coefficients in Porous Media
Makoto NISHIGAKITeddy SUDINDAY. SASAKIM. INOUET. MORIWAKI
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1996 年 38 巻 1 号 p. 13-27

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Recently resistivity tomography techniques have been used as investigation method for civil engineering purpose. In this paper, the authors describe a new method to analysis the behavior of groundwater contaminant flow under saturated condition and to consider methods of determining the transport parameter such as longitudinal and transversal dispersion coefficients in the subsurface with the aid of conductivity probe method and resistivity tomography method. Resistivity between two electrodes was monitored using a multichanel cross borehole system. The experiments were conducted using pole-pole receiver electrode array. A two dimensional inversion tomography program was then used to simulate the apparent resistivity in laboratory experiments, and to estimate the salt water concentration.
The longitudinal and transverse dispersion parameters were determined using resistivity tomography method and they were compared with those from the conductivity method. The results from both methods were consequently compared with those from an FEM advection dispersion analysis. It will be shown that the result are mutually consitent.

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© Japanese Association of Groundwater Hydrology
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