The layer is subjected to a uniform vertical stress increase of 100 kPa. The singly-drained clay layer has a coefficient of consolidation of  20 ft2 /yr. Determine the value of the excess pore pressure at point A 2 years after the application of the load. Also given is the chart giving the local degree of consolidation. a)4.4 kPa b)44 kPa c)88 kPa d)96 kPa

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The layer is subjected to a uniform vertical stress increase of 100 kPa. The singly-drained clay layer has a coefficient of consolidation of  20 ft2 /yr. Determine the value of the excess pore pressure at point A 2 years after the application of the load. Also given is the chart giving the local degree of consolidation.

a)4.4 kPa
b)44 kPa
c)88 kPa
d)96 kPa
0 -0.05,
0.107
0.15
0.20
E0.848
0.30
生0.90
z-
1-
1
2
0.1
0.2
0.3
0.4
0.5
Consolidation ratio, U,
Fig. 9.3 Consolidation for any location and time factor in a doubly
0.6
0.7
0.8
0.9
1.0
drained layer (after Taylor, 1948).
NI
Transcribed Image Text:0 -0.05, 0.107 0.15 0.20 E0.848 0.30 生0.90 z- 1- 1 2 0.1 0.2 0.3 0.4 0.5 Consolidation ratio, U, Fig. 9.3 Consolidation for any location and time factor in a doubly 0.6 0.7 0.8 0.9 1.0 drained layer (after Taylor, 1948). NI
Sand
A
20
clax
bedrock
(impermeable)
Transcribed Image Text:Sand A 20 clax bedrock (impermeable)
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