Figure shows a clean sand having a permeability of 0.075 cm/s and a void ratio of 0.62 placed in a horizontal flow apparatus. If the cross-sectional area of the horizontal pipe is 100 cm² and the length (L) of the soil sample is 0.50 m. compute the followings. a) Superficial velocity (v), b) Seepage velocity (v.) when the change in head (Ah) equals 100 cm c) Discharge Q soil cross-sectional area A

Figure shows a clean sand having a permeability of 0.075 cm/s and a void ratio of 0.62 placed in a horizontal flow apparatus. If the cross-sectional area of the horizontal pipe is 100 cm² and the length (L) of the soil sample is 0.50 m. compute the followings. a) Superficial velocity (v), b) Seepage velocity (v.) when the change in head (Ah) equals 100 cm c) Discharge Q soil cross-sectional area A

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Hydraulic Conductivity

Section: Chapter Questions

Problem 6.7P

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Q.4) Figure shows a clean sand having a permeability of 0.075 cm/s and a void ratio of 0.62 placed in a horizontal flow apparatus. If the cross-sectional area of the horizontal pipe is 100 cm² and the length (L) of the soil sample is 0.50 m. compute the followings. a) Superficial velocity (v), b) Seepage velocity (v.) when the change in head (Ah) equals 100 cm c) Discharge Q H Ah soil cross-sectional area A 2
3. From constant head permeability test on fine sand, the following data were recorded: Length of sample = 16 cm Diameter of sample = 9.6 cm Constant head difference = 50 cm Volume of water collected in 4 minutes = 420 cm³ a. Determine the coefficient of permeability in cm/sec. b. Find the discharge velocity in cm/sec. c. If the void ratio is 0.55, compute the seepage velocity in cm/sec.
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