During a constant head permeability test on a sand sample, 260ml of water was collected in 2 min. If the sample had a length of 100 mm, a diameter of 40 mm and a maintained head of 200 mm, what is the coefficient of permeability?

During a constant head permeability test on a sand sample, 260ml of water was collected in 2 min. If the sample had a length of 100 mm, a diameter of 40 mm and a maintained head of 200 mm, what is the coefficient of permeability?

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter5: Soil Compaction

Section: Chapter Questions

Problem 5.13P

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Concept explainers

Laboratory Determination of Hydraulic Conductivity

Hydraulic conductivity is the measure of flowability of water inside the soil in the presence of a hydraulic gradient. The hydraulic gradient is defined as the difference in the water heads in the soil, which induces a water motion. In simple terms, a hydraulic gradient is the presence of a potential that induces a flow of water.

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