A clay sample is 2.5 cm high and has a diameter of 6.5 cm. It is placed in an oedometer with a variable- head permeameter. The water percolation through the sample is measured in a standpipe whose inner diameter is 1.7 mm. The tube is graduated in centimeters from the top to the bottom. The top graduation is zero and is located 35 cm above the base of the oedometer. The overflow in the oedometer is 3 cm above its base. At the start of the test, the water level in the tube is at zero; 6 mins and 35 sees later, the water level has dropped to graduation 2. What is the coefficient of permeability of the clay in cm/s?

A clay sample is 2.5 cm high and has a diameter of 6.5 cm. It is placed in an oedometer with a variable- head permeameter. The water percolation through the sample is measured in a standpipe whose inner diameter is 1.7 mm. The tube is graduated in centimeters from the top to the bottom. The top graduation is zero and is located 35 cm above the base of the oedometer. The overflow in the oedometer is 3 cm above its base. At the start of the test, the water level in the tube is at zero; 6 mins and 35 sees later, the water level has dropped to graduation 2. What is the coefficient of permeability of the clay 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 6.1P

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