The following figure shows a uniformly distributed load applied at the ground surface. A sample was obtained from the center of the clay layer, and the consolidation test results are shown below. Given: Δσ = 2,000 psf H1 = 10 ft H2 = 10 ft H3 = 40 ft eo(clay) = 1.25 γdry(sand) = 110 lb/ft3 γsat(sand) = 115 lb/ft3 γsat(clay) = 120 lb/ft3 Consolidation Test Results e σ' (tsf) 1.210 0.25 1.190 0.5 1.150 1 1.080 2 0.980 4 0.875 8 0.769 16 0.664 32 0.706 8 0.748 2 0.790 0.5 a) Determine the compression index, Cc b) Calculate the primary consolidation settlement for the clay layer
The following figure shows a uniformly distributed load applied at the ground surface. A sample was obtained from the center of the clay layer, and the consolidation test results are shown below. Given: Δσ = 2,000 psf H1 = 10 ft H2 = 10 ft H3 = 40 ft eo(clay) = 1.25 γdry(sand) = 110 lb/ft3 γsat(sand) = 115 lb/ft3 γsat(clay) = 120 lb/ft3 Consolidation Test Results e σ' (tsf) 1.210 0.25 1.190 0.5 1.150 1 1.080 2 0.980 4 0.875 8 0.769 16 0.664 32 0.706 8 0.748 2 0.790 0.5 a) Determine the compression index, Cc b) Calculate the primary consolidation settlement for the clay layer
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
The following figure shows a uniformly distributed load applied at the ground surface. A sample was obtained from the center of the clay layer, and the consolidation test results are shown below.
Given:
Δσ = 2,000 psf
H1 = 10 ft
H2 = 10 ft
H3 = 40 ft
eo(clay) = 1.25
γdry(sand) = 110 lb/ft3
γsat(sand) = 115 lb/ft3
γsat(clay) = 120 lb/ft3
Consolidation Test Results
e | σ' (tsf) |
1.210 | 0.25 |
1.190 | 0.5 |
1.150 | 1 |
1.080 | 2 |
0.980 | 4 |
0.875 | 8 |
0.769 | 16 |
0.664 | 32 |
0.706 | 8 |
0.748 | 2 |
0.790 | 0.5 |
a) Determine the compression index, Cc
b) Calculate the primary consolidation settlement for the clay layer
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