Calculate the vertical stress at 20 ft depth, given the concentrated load 250 tons, Poisson's ratio 0.45 (stiff to soft clays 0.20 -0.45), and the horizontal distance from the point of application of point P at which p is desired 16 ft. Consider # = 3.14 KYKY 0.68 01.08. 1.25 0.14 O 0.04 P=250 tons r = 16 ft TIKXKX 2= 20 ft

8. Estimate the settlement of the center of the tank, shown in the sketch, due to consolidation of the 20-ft layer of clay. 80'diam. -Oil tank; 500 lb/sq ft 30' fine sand; 125 lb/cu ft 20'clay; qu = 1.3 tons/sq ft W = 54 % Wp = 26% W = 44% Isat = /15 lb /cu ft %3D Rock %3D %3D

A building is founded on a rectangular mat of dimensions 20 m x 10 m as shown in the plan view in figure below. A surcharge of 300 kPa is applied within the area ABCD whereas a surcharge of 100 kPa is applied within the area CDEF. Calculate the increase in vertical total stress in kPa at the depth of 5 m below Point F (acceptable tolerance = 10%).

1) Properties of soil and concrete Osal 4m 9 = 30° Cohesion =0 Coefficient of base friction = 0.50 Soil's ultimate bearing copacity= V25 k 2m %3D 12 0.0 use Rankine's theovy Considering no evosion and future excavaton would happen in the Soil a) Detemine the location of the active force from the boase. 67 Determine the total normal force reachion of soil at the bose. c) Determine FS SIDING. d) Determine FSarturning o e) Determine PSpcoing. C-