8.1 A soil profile is shown in Figure 8.20. Calculate the values of o. u, and o' at points A, B, C, and D. Plot the variation of o, u, and o' with depth. The fol- lowing values are given: Thickness Unit weight (lb/t) Layer no. (ft) H, = 5 H; = 6 H, = 8 Ye-112 Yat = 120 Yar= 125 II III

Principles of Geotechnical Engineering (MindTap Course List)
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Author:Braja M. Das, Khaled Sobhan
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Chapter3: Weight–volume Relationships
Section: Chapter Questions
Problem 3.24P
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8.1 A soil profile is shown in Figure 8.20. Calculate the values of o, u, and o' at
points A, B, C, and D. Plot the variation of a, u, and o' with depth. The fol-
lowing values are given:
Thickness
Unit weight
(Ib /ft)
Layer no.
(ft)
I
II
H, - 5
H3 = 6
H, = 8
Ye-112
Yeat = 120
III
Yar = 125
8.2
Repeat Problem 8.1 with the following data:
Thickness
(ft)
Unit weight
(Ib/ti
Layer no.
II
III
H, = 5
H; = 10
H, = 9
Ye= 100
Yar= 116
Yun= 122
8.3 Repeat Problem 8.1 with the following values:
Thickness
(m)
Unit weight
(kN/m)
Layer no.
I
H, = 3
H; = 4
H3 - 5
Ya= 15
Ya = 16
Ysat- 18
II
III
Transcribed Image Text:Problems 8.1 A soil profile is shown in Figure 8.20. Calculate the values of o, u, and o' at points A, B, C, and D. Plot the variation of a, u, and o' with depth. The fol- lowing values are given: Thickness Unit weight (Ib /ft) Layer no. (ft) I II H, - 5 H3 = 6 H, = 8 Ye-112 Yeat = 120 III Yar = 125 8.2 Repeat Problem 8.1 with the following data: Thickness (ft) Unit weight (Ib/ti Layer no. II III H, = 5 H; = 10 H, = 9 Ye= 100 Yar= 116 Yun= 122 8.3 Repeat Problem 8.1 with the following values: Thickness (m) Unit weight (kN/m) Layer no. I H, = 3 H; = 4 H3 - 5 Ya= 15 Ya = 16 Ysat- 18 II III
H, = 5
H; = 10
H, - 9
Ye- 100
Ya= 116
Yai = 122
II
III
8.3 Repeat Problem 8.1 with the following values:
Thickness
(m)
Unit weight
(kN/m)
Layer no.
I
H,
H, 4
H,
Ye = 15
Ya = 16
Ysat = 18
II
III
5
Layer I
Dry sand
Groundwater table
Layer II
Sand
Layer In;
Clay
Figure 8.20
Transcribed Image Text:H, = 5 H; = 10 H, - 9 Ye- 100 Ya= 116 Yai = 122 II III 8.3 Repeat Problem 8.1 with the following values: Thickness (m) Unit weight (kN/m) Layer no. I H, H, 4 H, Ye = 15 Ya = 16 Ysat = 18 II III 5 Layer I Dry sand Groundwater table Layer II Sand Layer In; Clay Figure 8.20
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