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LOGARITHM OF TIME METHOD
2
initial
primary
secondary
t2 = 4t1
DETERMINATION OF Cv

3
SQUARE-ROOT-of-TIME METHOD
4
OC = 1.5 OB
TIME FOR 90%
CONSOLIDATION
DETERMINATION OF CV
5
For 90% consolidation,
T90 = 0.848
So,
HYPERBOLA METHOD
6
EARLY STAGE Log-t METHOD
7
REFERENCE
• PRINCIPLES OF GEOTECHNICAL
ENGINEERING (BRAJA M. DAS)
• SOIL MECHANICS & FOUNDATION
ENGINEERING (DR. K.R. ARORA)
8
9

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Determination of coefficient of consolidation