Problem 1 A ground profile consists of 2 m of silty sand underlain by 3 m of clay. The ground water table is 3 m below the ground surface. The sand has a unit weight of 14 kN/m3. The clay has unit weight of 16 kN/m3 above the water table and 20 kN/m3 below the water table. 1. Determine the total stress at bottom of the clay 2. Determine the pore water pressure at the bottom of the clay 3. Determine the effective stress at the bottom of the clay

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