19-mm thick soil has water table 5m. below the ground surface. The soil has a void ratio of 0.55 and specific gravity of 2.63. Above the water table, the soil has a degree of saturation equal to 44.53%. Direct shear test conducted on the soil shows that the an angle of internal friction of 27.48° and cohesion of 16.27 kPa. What is the potential shear strength (in kPa) on a horizontal plane at a depth of 9m. below the ground surface?

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Test for Determination of Shear Strength

The term shear strength is often associated with the soil. Shear strength is defined as the resistance to the deformation of soil particles due to the continuous action of shear stress. In short, shear strength is the maximum shear stress that a soil can sustain.