Empirical model to determine hydraulic conductivity using grain-size data
DOI:
https://doi.org/10.14195/2184-8394_119_3Keywords:
Hydraulic conductivity, Grain-size curves, Rio Claro formation, Empirical modelsAbstract
A great number of models have been proposed for estimating hydraulic conductivity as a func tion of grain size distribution of soil/sediment. However these relationships are applicable to specific sample attributes. The present work demonstrates the use of multiple regression analysis to define empirical rela tionship between grain size and hydraulic conductivity (as determined from slug test) of unconsolidated sedi ments of a lithologically heterogeneous aquifer. The sediments located in an industrial area of Paulínia (SP) are correlated to Rio Claro Formation (Cenozoic). The excellent correlation is confirmed by a determination coefficient of 0.98. These results show that indirect hydraulic characterization of sediments is possible using multiple regression method for estimating hydraulic conductivity values in the studied area.
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References
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