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

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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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

H1
Groundwater table
H2
Void ratio = e
H3
O Sand
E Clay
Transcribed Image Text:H1 Groundwater table H2 Void ratio = e H3 O Sand E Clay
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