For settlement, the stiffness of the soil is most important, and if the soil is clay, consolidation properties such as Cc, Cr, and maximum past pressure. Not shear strength. 

Hello some one,

As much as settlement is obviously always related to consolidation, Please note that its only a displacement parameter, and this implies that even internal loss in shear resistance (vertical incident) can also generate a settlement phenomena at the surface. Especially in multi-layered fills of different Engineering properties.