7.20 Estimate the hydraulic conductivity of a saturated clay having a clay-size fraction, CF = 42%, and plasticity index, PI=27%. Given: Yat 18.8 kN/m³ and G₁ = 2.73. Use Tavenas et al.'s (1983) method illustrated in Figure 7.15. 2.8 PI+ CF = 1.25 1.0 2.4 2.0- 0.75 1.6 1.2 0.8 Void ratio, e 0.4 0.5 10-11 10-10 10-9 5x 10-9 k (m/sec) Figure 7.15 Variation of void ratio with hydraulic conductivity of clayey soils (Based on Tavenas et al, 1983)
7.20 Estimate the hydraulic conductivity of a saturated clay having a clay-size fraction, CF = 42%, and plasticity index, PI=27%. Given: Yat 18.8 kN/m³ and G₁ = 2.73. Use Tavenas et al.'s (1983) method illustrated in Figure 7.15. 2.8 PI+ CF = 1.25 1.0 2.4 2.0- 0.75 1.6 1.2 0.8 Void ratio, e 0.4 0.5 10-11 10-10 10-9 5x 10-9 k (m/sec) Figure 7.15 Variation of void ratio with hydraulic conductivity of clayey soils (Based on Tavenas et al, 1983)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Problem 7.20
Transcribed Image Text:7.20 Estimate the hydraulic conductivity of a saturated clay having a clay-size
fraction, CF = 42%, and plasticity index, PI = 27%. Given: Yat 18.8 kN/m³
and G₁ = 2.73. Use Tavenas et al.'s (1983) method illustrated in Figure 7.15.
2.8
PI + CF = 1.25
1.0
2.4
2.0-
1.6
1.2
0.8
0.4
Void ratio, e
0.75
0.5
10-11
10-10
10-9
5× 10-9
k (m/sec)
Figure 7.15 Variation of void ratio with hydraulic conductivity of clayey soils (Based on
Tavenas et al, 1983)
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