In a constant head permeability test, the quantity of water collected is 380 ml in 12 minutes under an effective constant head of 45 cm. If the length and area of cross section of the sample are 6.5 cm and 50 cm² respectively, then coefficient of permeability is

In a constant head permeability test, the quantity of water collected is 380 ml in 12 minutes under an effective constant head of 45 cm. If the length and area of cross section of the sample are 6.5 cm and 50 cm² respectively, then coefficient of permeability is

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter7: Permeability

Section: Chapter Questions

Problem 7.23P

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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.

Question

In a constant head permeability test, the quantity
of water collected is 380 ml in 12 minutes under
an effective constant head of 45 cm. If the length
and area of cross section of the sample are 6.5 cm
and 50 cm² respectively, then coefficient of
permeability is

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