A falling head hydraulic conductivity test is performed on a sample of soil. The standpipe having a diameter 0.35 cm is observed and it takes 80 seconds for the water to drop by 70 cm from an initial hydraulic head of 90 cm. The sample has a length of 22 cm, and a diameter of 5 cm. Compute the rate of flow of water in the soil (in cm/s).

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 6.6P
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A falling head hydraulic conductivity test is performed on a sample of soil. The standpipe having a diameter 0.35 cm is observed and it takes 80
seconds for the water to drop by 70 cm from an initial hydraulic head of 90 cm. The sample has a length of 22 cm, and a diameter of 5 cm.
Compute the rate of flow of water in the soil (in cm/s).
Transcribed Image Text:A falling head hydraulic conductivity test is performed on a sample of soil. The standpipe having a diameter 0.35 cm is observed and it takes 80 seconds for the water to drop by 70 cm from an initial hydraulic head of 90 cm. The sample has a length of 22 cm, and a diameter of 5 cm. Compute the rate of flow of water in the soil (in cm/s).
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