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the coefficient of consolidation

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srbija1

Geotechnical
Joined
Feb 24, 2009
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YU
How can I estimate coefficient of consolidation from soil parameters obtained from ladoratory? Most used relationships (liquid limit...)?
 
See standard textbooks. Lambe and Whitman have a relationship of Compression Ratio (Cc/(1+eo)) vs water content for clays.
 
You won't find such a relationship but you can find tables with "usual" sets of value.

One of them ( from an engineering school class ) will give you usual Cv values for the following void ratios :

e= 0.8 Cv = 10-3 cm2/s
e= 1.08 Cv = 8 10-4 cm2/s
e= 1.45 Cv = 6 10-4 cm2/s
e= 2.00 Cv = 3 10-4 cm2/s
e= 2.86 Cv = 10-4 cm2/s

But be careful, this is just for preliminary design, it will never replace lab tests !
 
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