A falling-head permeameter contains a sample of length 10 centimeters and diameter4 centimeters. The falling-head tube has an inside diameter of 1 centimeter. Thehead falls from 5 to 2 centimeters over a period of 70 minutes.What is the hydraulic conductivity in cm/sec?b. The water temperature was 21° C. At this temperature the density of water is0.997 g/cm' and the viscosity is 0.00988 g/sec-cm. What is the intrinsic permea-bility of the sample?а.

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A falling-head permeameter contains a sample of length 10 centimeters and diameter 4 centimeters. The falling-head tube has an inside diameter of 1 centimeter. The nead falls from 5 to 2 centimeters over a period of 70 minutes. a. What is the hydraulic conductivity in cm/sec? . The water temperature was 21° C. At this temperature the density of water is 0.997 g/cm³ and the viscosity is 0.00988 g/sec-cm. What is the intrinsic permea- bility of the sample?

A falling-head permeameter contains a sample of length 10 centimeters and diameter 4 centimeters. The falling-head tube has an inside diameter of 1 centimeter. The nead falls from 5 to 2 centimeters over a period of 70 minutes. a. What is the hydraulic conductivity in cm/sec? . The water temperature was 21° C. At this temperature the density of water is 0.997 g/cm³ and the viscosity is 0.00988 g/sec-cm. What is the intrinsic permea- bility of the sample?

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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

A falling-head permeameter contains a sample of length 10 centimeters and diameter
4 centimeters. The falling-head tube has an inside diameter of 1 centimeter. The
head falls from 5 to 2 centimeters over a period of 70 minutes.
What is the hydraulic conductivity in cm/sec?
b. The water temperature was 21° C. At this temperature the density of water is
0.997 g/cm' and the viscosity is 0.00988 g/sec-cm. What is the intrinsic permea-
bility of the sample?
а.

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