Q.5) The section through a long cofferdam is shown below, the coefficient of permeability of the soil being 6x108 m/s. Determine the quantity of seepage entering the cofferdam. 5.50 m 012345 H+ As-0.70 m +o 10 B В GD 15 m

Q.5) The section through a long cofferdam is shown below, the coefficient of permeability of the soil being 6x108 m/s. Determine the quantity of seepage entering the cofferdam. 5.50 m 012345 H+ As-0.70 m +o 10 B В GD 15 m

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 7.14P

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Concept explainers

Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.

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Q.5) The section through a long cofferdam is shown below, the coefficient of permeability of the soil being 6x10-8
m/s. Determine the quantity of seepage entering the cofferdam.
5.50 m
0 1 2 3 4 5
H+++
As = 0.70 m
B
to
10
15 m

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The section through a long cofferdam is shown below, the coefficient of permeability of the soil being 6x10-8 m/s. Determine the quantity of seepage entering the cofferdam. T 5.50 m! 0 1 2 3 4 5 E As = 0.70 m +c 10 B to 15 m
The section through a long cofferdam is shown below, the coefficient of permeability of the soil being 6x10-8 m/s. Determine the quantity of seepage entering the cofferdam. 5.50 m I 0 1 2 3 4 5 As = 0.70 ml +cl 10 B ax 15 m
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A block of soil in a permeability test has a length of 120 mm and a cross-sectional area of 600 mm2. The water level at one end is 200 mm above a fixed datum and at the other end is 30 mm above the same plane. The flow rate was 2 ml in 90 seconds. Compute the coefficient of permeability of the soil in m/s. a.2.61 x 10-5 m/s b.0.98 x 10-5 m/s c.1.78 x 10-5 m/s d.3.97 x 10-5 m/s e.1.89 x 10-5 m/s
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