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Consolidation Parameters: STIFF CLAY
Typical consolidation parameters (Cc, Cr, Cv, Ca) by soil type for settlement analysis — compression index, recompression index, coefficient of consolidation, and secondary compression coefficient
| soil description | ca cc ratio max (dimensionless) | ca cc ratio min (dimensionless) | cc max (dimensionless) | cc min (dimensionless) | cc typical (dimensionless) | cr cc ratio max (dimensionless) | cr cc ratio min (dimensionless) | cv ft2 day max (ft^2/day) | cv ft2 day min (ft^2/day) | ocr guidance | standard | void ratio max (dimensionless) | void ratio min (dimensionless) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STIFF CLAY | 0.008 | 0.002 | 0.3 | 0.05 | 0.15 | 0.2 | 0.1 | 5 | 0.5 | OCR=3 to 8; overconsolidated; heave possible in excavations; swelling Cr governs rebound | Das 2021; Coduto 1999; NAVFAC DM-7.1 | 0.8 | 0.3 |
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