Benassi & Vannelli - Cu
•correlations derived by the penetrometer construction company SUNDA 1983.
Sanglerat - Cu
•from CPT (Cone Penetration Test) data for saturated cohesive soils.
•these correlations are not valid for sensitive clays whose sensitivity is > 5 nor over consolidated or fissured clays or low plasticity silts.
Sanglerat - Cu
•for silty-sandy clays of low cohesiveness
•values valid for penetrometric resistance < 10 blows
•for higher resistance Sanglerat’s correlation for plastic clays is indicated
a = 1.33 for low sandy sandy clay
(U.S.D.M.S.M.) U.S. Design Manual Soil Mechanics undrained cohesion - Cu
•valid for silty clay and clay of low, medium or high plasticity, (Cu-Nspt-degree of plasticity).
Schmertmann (1975) - Cu - (average values)
•valid for clays and clayey silts of Nc=20 and Qc/Nspt=2
Schmertmann (1975) - Cu
•valid for clays NC .
Fletcher (1965) (Chicago clay)
•valid for clay of low or medium plasticity
Houston (1960)
•clay of medium-high plasticity
Shioi-Fukuni (1982)
•valid for soils inconsistent and plastic clay of medium to high plasticity
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