circular area having a radius of 3 m, carries a uniformly distributed load of 96 kPa is applied to the ground. Compute the total vertical stress increment in kPa due to this uniform load if the unit weight of soil is 18.40 kN/m2. 1.At a point 6 m. below the center of the circular area. 2.At a point 6 m. below the ground surface at a horizontal distance of 1.5 m. from the center of the circular area. 3. At a point 6 m. below the edge of the circular area.

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Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.