ESTIMATION OF HYDRAULIC CONDUCTIVITY USING STATISTICAL GRAIN SIZE ANALYSIS IN OTUKPO AND ENVIRONS, BENUE STATE, NORTH CENTRAL NIGERIA

Publication Date : 03/06/2020


Author(s) :

Dr. Buba Apagu Ankidawa, C. Omepa, M.W. Kabiru , Y.B. Dennis.


Volume/Issue :
Volume 15
,
Issue 2
(06 - 2020)



Abstract :

The knowledge of hydraulic conductivity is important in the determination of natural flow of water through ground formations in the study of groundwater sources. The research aimed at estimation of hydraulic conductivity using statistical grain size analysis in Otukpo and environs, Benue State. Twelve different soil samples were collected from boreholes and analysed using statistical grain methods for the estimation of hydraulic conductivity. The result of particle size distribution shows that medium sand has 55.33%, coarse sand 24.92%, fine sand 13.92% and gravel 5.83%. this type of soils allows free movement of water through its formation to recharge groundwater for easy abstraction by the communities. The statistical grain size methods gave hydraulic conductivity values ranging from 2.01 x 10-4 m/s to 7.06 x 10-4 m/s. The acceptable empirical formulae for the estimation of hydraulic conductivity in the study area Kozeny-Carman method. The result aided the classification of the soils as clean sand in the study area. The hydraulic conductivity values of the soil materials indicate permeability of silty sand to medium sand which is an indication of moderate permeability.


No. of Downloads :

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