A constant-head permeability test is performed in a laboratory where the soil sample is 25 cm in length and 6 cm2 in cross-section. The height of the water is maintained at 2 ft at the inflow end and 6 in. at the outlet end. The quantity of water flowing through the sample is 200 ml in 2 minutes. (a) Make a sketch of the described conditions.

A constant-head permeability test is performed in a laboratory where the soil sample is 25 cm in length and 6 cm2 in cross-section. The height of the water is maintained at 2 ft at the inflow end and 6 in. at the outlet end. The quantity of water flowing through the sample is 200 ml in 2 minutes. (a) Make a sketch of the described conditions.

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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A constant-head permeability test is performed in a laboratory where the soil sample is 25 cm in length and 6 cm2 in cross section. The height of water is maintained at 2 ft at the inflow end and 6 in. at the outlet end. The quantity of water flowing through the sample is 200 ml in 2 minutes. (a) Make a sketch of the described conditions. (b) What is the coefficient of permeability in millimeters per minute?
Sketch the figure and determine coefficient of permeability (k) in mm/min using constant head permeability, given the following data, Water flows horizontally The height of the reservoir supply source is 2 m above the elevation of the outlet. The soil sample length in the direction of water flow is 200 mm. The cross-sectional area of the soil sample is 1,950 mm2. The measured volume of flow for the steadystate condition is 500 ml in a 10-minute time period.
For a constant head laboratory permeability test on fine sand, the following values are given: Length of specimen, L = 15inches Diameter of specimen, D = 3inches Head difference, h = 22inches Water collected in 120 seconds = 0.057cu.in Void ratio, e = 0.37 a. Determine the hydraulic conductivity (in/min) of the soil. b. Determine the discharge velocity (in/min) through the soil. c. Determine the seepage velocity (in/min) {νs=νn}. Note: Your answer must contain 5 numbers after the decimal point. (Example: 0.00504, 0.00899, 0.02345, 0.00200) these values must be used to solve succeeding questions. Please answer this asap. For upvote. Thank you very much
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A cylindrical soil sample 50 mm in diameter and 200 mm in height is used as thepermeameter in a falling head permeability test setup. In one minute of observation, thehydraulic head in the 10 mm diameter standpipe through which test water went reducedfrom 900mm to 500 mm. During that time, 1.5 liters of water were collected in the graduate. Calculate the soil sample's permeability coefficient in cm/s.
A falling head permeability test is conducted on silty soil. The sample diameter is 10.0 cm and its length or thickness is 6 cm. The diameter of the standpipe is 6.0 mm. The head at the start of the test is 58 cm. The test lasts 9 min and the head falls to 38 cm. Find the coefficient of permeability of this soil. The answer must be in 6 decimal places. Use units cm/sec.
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The hydraulic conductivity of a soil sample (3.4 x 10-4 cm/s) has been determined via a permeability test. The water temperature was 28°C at the time of experiment. What is the hydraulic conductivity of the sample at the standard temperature of 20°C?
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