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3. For a constant head laboratory permeability test on a fine sand, the followi given: Length of specimen 300 mm Diameter of specimen 200 mm Head difference 400 mm Volume of water collected in 4 minutes 420 m³ Void ratio of the soil specimen 0.55 Continuous supply Overflow 400 mm soil 300 mm Porous plate jample Horizontal area of soil sample 200 mm a. Compute the coefficient of permeability in cm/sec. b. Compute the discharge velocity in cm/sec. c. Compute the seepage velocity.

3. For a constant head laboratory permeability test on a fine sand, the followi given: Length of specimen 300 mm Diameter of specimen 200 mm Head difference 400 mm Volume of water collected in 4 minutes 420 m³ Void ratio of the soil specimen 0.55 Continuous supply Overflow 400 mm soil 300 mm Porous plate jample Horizontal area of soil sample 200 mm a. Compute the coefficient of permeability in cm/sec. b. Compute the discharge velocity in cm/sec. c. Compute the seepage velocity.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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1. The figure shows layers of soil in a tube that is 100mm x 100mm in cross – section. Water 3. For a constant head laboratory permeability test on a fine sand, the followi is supplied to maintain a constant head difference of 400mm across the sample. The given: hydraulic conductivities of the soils in the direction of flow through them are as follows: Soil k (cm/sec) Porosity, n Length of specimen 300 mm A 1x 10-2 25% Diameter of specimen 200 mm 3х 103 32% Head difference 400 mm C 4.9 x 10-4 22% Volume of water collected in 4 minutes 420 m3 Void ratio of the soil specimen 0.55 Water supply Continuous supply Overflow Constant head difference = 400 mm 400 mm A B -soil. sample 300 mm Porous plate 150 mm 150 mm Horizontal area of soil sample 200 mm 200 mm a. Calculate the equivalent k in cm/sec. a. Compute the coefficient of permeability in cm/sec. b. Calculate the rate of water supply in cm³/hr. b. Compute the discharge velocity in cm/sec. c. Calculate the seepage velocity through soil C in m/sec. c. Compute the seepage velocity.
Transcribed Image Text:1. The figure shows layers of soil in a tube that is 100mm x 100mm in cross – section. Water 3. For a constant head laboratory permeability test on a fine sand, the followi is supplied to maintain a constant head difference of 400mm across the sample. The given: hydraulic conductivities of the soils in the direction of flow through them are as follows: Soil k (cm/sec) Porosity, n Length of specimen 300 mm A 1x 10-2 25% Diameter of specimen 200 mm 3х 103 32% Head difference 400 mm C 4.9 x 10-4 22% Volume of water collected in 4 minutes 420 m3 Void ratio of the soil specimen 0.55 Water supply Continuous supply Overflow Constant head difference = 400 mm 400 mm A B -soil. sample 300 mm Porous plate 150 mm 150 mm Horizontal area of soil sample 200 mm 200 mm a. Calculate the equivalent k in cm/sec. a. Compute the coefficient of permeability in cm/sec. b. Calculate the rate of water supply in cm³/hr. b. Compute the discharge velocity in cm/sec. c. Calculate the seepage velocity through soil C in m/sec. c. Compute the seepage velocity.
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