Stroud & Butler (1975) - Mo (Eed)
•for soils of medium plasticity
•valid for medium to high plasticity clayey soils – of glacial clay origin
Stroud & Butler (1975)
•for soils of low to medium plasticity (IP< 20)
•valid for medium to low plasticity clayey soils – of glacial clay origin
Vesic (1970)
•correlation valid for soft clays (minimum & maximum values)
maximum
minimum
Trofimenkov (1974), Mitchell & Gardner Confined Modulus
•valid for clayey and clayey-silty soils (Qc/Nspt ratio=1.5-2.0)
Buismann-Sanglerat
•valid for compact clays (Nspt <30), medium and soft (Nspt <4) and sandy loams (Nspt = 6-12)
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