Water is flowing through three soil layers as shown in Fig. Q2. The cross-section is a square with sides of 100 mm. The hydraulic conductivity (also known as coefficient of permeability) of each soil layer is given in Table Q2. a. What is the equivalent hydraulic conductivity of the three layers? b. Determine the flow rate exiting the system. c. Determine the elevation head diagram, the total head diagram, and the pressure head diagram from point A to point B. Ah = 30 cm h, = 50 cm h2 = 20 cm D= 10 cm 3.33 cm 3.33 cm 3.33 cm O Datum 45 cm O Datum Fig. Q2: Three-layer permeameter

Fundamentals of Geotechnical Engineering (MindTap Course List)
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Author:Braja M. Das, Nagaratnam Sivakugan
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Chapter6: Hydraulic Conductivity
Section: Chapter Questions
Problem 6.1P
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Water is flowing through three soil layers as shown in Fig. Q2. The cross-section is a square
with sides of 100 mm.
The hydraulic conductivity (also known as coefficient of
permeability) of each soil layer is given in Table Q2. a. What is the equivalent hydraulic
conductivity of the three layers? b. Determine the flow rate exiting the system. c. Determine
the elevation head diagram, the total head diagram, and the pressure head diagram from point
A to point B.
Ah = 30 cm
h, = 50 cm
h2 = 20 cm
B
D = 10 cm
3.33 cm
3.33 сm
3.33 cm
O Datum
45 cm
O Datum
Fig. Q2: Three-layer permeameter
Transcribed Image Text:Water is flowing through three soil layers as shown in Fig. Q2. The cross-section is a square with sides of 100 mm. The hydraulic conductivity (also known as coefficient of permeability) of each soil layer is given in Table Q2. a. What is the equivalent hydraulic conductivity of the three layers? b. Determine the flow rate exiting the system. c. Determine the elevation head diagram, the total head diagram, and the pressure head diagram from point A to point B. Ah = 30 cm h, = 50 cm h2 = 20 cm B D = 10 cm 3.33 cm 3.33 сm 3.33 cm O Datum 45 cm O Datum Fig. Q2: Three-layer permeameter
Table Q2: Hydraulic Conductivity of Three Soil Layers
Soil
Hydraulic conductivity (m/s)
1 × 10–4
5 x 10–6
3 x 10-5
1
2
3
Transcribed Image Text:Table Q2: Hydraulic Conductivity of Three Soil Layers Soil Hydraulic conductivity (m/s) 1 × 10–4 5 x 10–6 3 x 10-5 1 2 3
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