Question: A 6 m square footing carries a total load including its own weight of 10000 KN The base of the footing is at a depth

A 6 m square footing carries a total load including its own weight of 10000 KN The base of the footing is at a depth of 3 m below the ground surface The soil strata at the site consist of a layer of stiff saturated clay 275 m thick overlying dense sand The average bulk density of the clay is 1920 kgm and its average shear strength determined from undrained triaxial test is 130 kNm and angle of internal friction is 0 4 5pts Determine the gross foundation pressure in kPa 5pts Determine the net foundation pressure 5pts Calculate the factor of safety of the foundation against complete shear failure under the undrained condition consider gross Side cohesion on the foundation is neglected

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