U may use other reliable table or reference to find the unit weight if the above data is lack of information.

Soil stiffness (silt) Depth of soil (m) Soft 0.0-4.5 Stiff 4.5-7.5 Hard 7.5-9.0 Above is the data from a sample, plot the variation of total and effective stresses and the pore pressure at 9m depth of the silt deposit. Given condition . . effective pore size is 5*10^-6m height of capillary size is 10m Silt specific gravity = 2.68 initial void ratio of soft SILT is 1.1 The water table lies at a depth 8m below ground level . Soil stiffness (silt) Depth of soil (m) Soft 0.0-4.5 Stiff 4.5-7.5 Hard 7.5-9.0 Above is the data from a sample, plot the variation of total and effective stresses and the pore pressure at 9m depth of the silt deposit. Given condition . . effective pore size is 5*10^-6m height of capillary size is 10m Silt specific gravity = 2.68 initial void ratio of soft SILT is 1.1 The water table lies at a depth 8m below ground level