Consolidation Rate Chapter 9 Consolidation Model 1 4/2/2015 - - PDF document
Consolidation Rate Chapter 9 Consolidation Model 1 4/2/2015 - - PDF document
4/2/2015 Consolidation Rate Chapter 9 Consolidation Model 1 4/2/2015 Consolidation Rate 1 1 Coefficient of
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Consolidation Rate
- 1
1
- (Holtz & Kovacs, An Introduction to Geotechnical Engineering, 1981)
Coefficient of compressibility
′
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Coefficient of Compressibility
0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 10 100 1000 Void ratio, e Effective pressure ' (kPa)
'0 ‘f
Coefficient of Compressibility
0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 100 200 300 400 500 600 700 Void ratio, e Effective pressure ' (kPa)
'0 ‘f
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Coefficient of Compressibility
0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016 100 200 300 400 500 600 av Effective pressure ' (kPa)
'0 ‘f
Consolidation Rate
- 1
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(Holtz & Kovacs, An Introduction to Geotechnical Engineering, 1981)
Coefficient of volume change
∆ ∆′
Consolidation Rate
2Hdr
2 d z r v
c t H T
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Consolidation Rate
2 2 1
2 v z dr
c t T H
u0 = initial excess pore pressure uz
Degree of Consolidation
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Average Degree of Consolidation Average Degree of Consolidation
Time (years) Sp Settlement (feet)