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Overconsolidation Index of Secondary Compression

The overconsolidation index of secondary compression depends on laboratory measurements (e.g. one-dimensional consolidation) and is proportional to the logarithm of time and slope of virgin consolidation line providing the preconsolidation pressure was not exceeded:

where:

Cαr

-

overconsolidation index of secondary compression

ε

-

deformation of a soil layer

t1

-

initial time of a period of monitoring (measured from the onset of consolidation)

t2

-

final time of a period of monitoring