A uniform loading of 150kPa is applied at a 28 m Χ 28 m area. Please calculate the consolidation settlement of the clay layer used the middle of the clay layer to estimate the stress increment with the influence factor method). Cc = 0.4, Cs = 0.04, preconsolidation stress is 150 kPa and unit weight of water is 10 kN/m3. What is the settlement at the corner and center of the loading? What is the differential settlement between the corner and the center?

A clayey sand has a friction angle of 30 degrees and a cohesion of 200 psf. In the ground, the sand has a principle horizontal Normal Stress of 1000 psf acting on it. a)Determine the principle vertical normal stress necessary to cause faliure of the sand. Assume no shear stresses on the element and that the vertical stress is the major principle axis. b) Determine the shear stress and normal stress on the plane experiencing faliure c)What is the inclination of the faliure plane with respect to the horizontal

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N B 0 Horizontal The stresses shown in the figure are applied at a point in a dry clayey sand soil mass. A= 50 kPa and B= 125 kPa The shear strength parameters of the clayey sand are: c'= 9kPa and p'=29° 0=30° a) The value of the shear stress, T, is slowly increased. What value would cause shear failure at this point (in kPa)? b) At failure, what angle does the failure plane make with the horizontal (in degrees)?