Q1: In an oedometer test on a specimen of saturated clay (Gs = 2.72), the applied pressure was increased from 107 to 214 kPa and the following compression readings recorded: TABLE I Time (min) 0.25 0.5 1 2.25 4 6.25 9. 16 Gauge (mm) 7.82 7.42 7.32 7.21 6.99 6.78 6.61 6.49 6.37 Time (min) 25 36 49 64 81 100 300 1440 Gauge (mm) 6.29 6.24 6.21 6.18 6.16 6.15 6.10 6.02 After 1440 min, the thickness of the specimen was 15.30 mm and the water content was 23.2%. Determine the values of the coefficient of consolidation and the compression ratios from (a) the root time plot and (b) the log time plot. Determine also the values of the coefficient of volume compressibility and the coefficient of permeability.
Q1: In an oedometer test on a specimen of saturated clay (Gs = 2.72), the applied pressure was increased from 107 to 214 kPa and the following compression readings recorded: TABLE I Time (min) 0.25 0.5 1 2.25 4 6.25 9. 16 Gauge (mm) 7.82 7.42 7.32 7.21 6.99 6.78 6.61 6.49 6.37 Time (min) 25 36 49 64 81 100 300 1440 Gauge (mm) 6.29 6.24 6.21 6.18 6.16 6.15 6.10 6.02 After 1440 min, the thickness of the specimen was 15.30 mm and the water content was 23.2%. Determine the values of the coefficient of consolidation and the compression ratios from (a) the root time plot and (b) the log time plot. Determine also the values of the coefficient of volume compressibility and the coefficient of permeability.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Q1: In an oedometer test on a specimen of saturated clay (Gs = 2.72), the applied
pressure was increased from 107 to 214 kPa and the following compression
readings recorded:
TABLE I
Time (min)
0.25
0.5
1
2.25
4
6.25
9
16
Gauge (mm)
Time (min)
7.82
7.42
7.32
7.21
6.99
6.78
6.61
6.49
6.37
25
36
49
64
81
100
300
1440
Gauge (mm)
6.29
6.24
6.21
6.18
6.16
6.15
6.10
6.02
After 1440 min, the thickness of the specimen was 15.30 mm and the water content
was 23.2%. Determine the values of the coefficient of consolidation and the
compression ratios from (a) the root time plot and (b) the log time plot. Determine
also the values of the coefficient of volume compressibility and the coefficient of
permeability.
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