The results of a constant-head permeability test for a fine sand sample having a diameter of 150 mm and a length of 300 mm are as follows: constant head difference = 500 mm, water collected in 5 min = 350 cm3, void ratio of sand = 0.61. Determine the hydraulic conductivity.

The results of a constant-head permeability test for a fine sand sample having a diameter of 150 mm and a length of 300 mm are as follows: constant head difference = 500 mm, water collected in 5 min = 350 cm3, void ratio of sand = 0.61. Determine the hydraulic conductivity.

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 7.17P

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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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