Assume that the compressible soil shown in Figure 1 consists of a clay layer 10 ft thick. A laboratory ocdometer test made on a sample from the center of the layer indicates the following: Initial void ratio, e, = 1.10, Saturated density, y= 115 Ib/f Existing overburden pressure p, = 0.7 tons/ft Pre-consolidation pressure, P. = 2.2 tons/ft? Laboratory compression index C, = 0.35 Swelling index C, = 0.06. Calculate the settlement of the surface of the upper incompressible layer due to the imposition of a uniform surcharge pressure of 5.0 tons/ft2. Uniform Vertical Surcharge Pressure

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