Permeability of Abeokuta Riverbed Sediments

Akinyemi, Olukayode D.; Adesegun, Bisola; Akinpelu, Sunday

doi:10.1615/specialtopicsrevporousmedia.v3.i3.110

Cited by 2 publications

(1 citation statement)

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“…Also in Figure 5(A), for θ = 0˚, sample A of diameter 1.5 cm and length 0.5 m had the highest fall in pressure gradient where dp/dl = −0.65 while the least fall in pressure gradient was the same in Figures 5(B)-(E) respectively with dp/dl = −0.125. It was observed that pressure increases with increase in distance of flow for θ = 0˚ -25˚ for samples A, B and C for both length and diameter [16]. Convergence points of discharge rate against angle of tilt were observed between samples Q AB , Q AC , Q BC , and Q AB , Q AC , Q BC as illustrated in Table 4.…”

Section: Resultsmentioning

confidence: 78%

A Micro Study to Determine Porosity, Hydraulic Conductivity, Permeability and the Discharge Rate of Groundwater in Ondo State Riverbeds, Southwestern Nigeria

Omojola¹,

Akinpelu²,

Adesegun³

et al. 2014

IJG

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Laboratory study of three riverbed soil samples denoted as A, B and C have been carried out by determining the soils Porosity, Hydraulic conductivity, Permeability and also investigating if there are points of convergence between the discharge rate and angle of tilt for the above mentioned samples. The experimental results for Porosity were approximately within 34%-37%, Hydraulic conductivity was within 3.02 × 10 −5-9.70 × 10 −5 (m/s) and Permeability was within 2.74 × 10 −12-8.80 × 10 −12 (m 2). Pressure generally increases as distance of flow increases for θ = 5˚-25˚ but there was decrease in pressure as distance of flow increases for all three samples when θ = 0˚. The points of convergence for the discharge rate ranged from 0.001 × 10 −10-4.54 × 10 −10 (m 3 /s), while the angle of tilt convergence points ranged from 0.1˚ to 3.6˚. There was increase in discharge rate as angle of tilt increases for all three samples.

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Section: Resultsmentioning

confidence: 78%