In an area where the ground surface is level, the underlying soil has a unit weight of 16 kN/m 3 . Determine the principal stresses acting at a depth of 5 m if the lateral pressure is one-half the...

In an area where the ground surface is level, the underlying soil has a unit weight of 16 kN/m³. Determine the principal stresses acting at a depth of 5 m if the lateral pressure is one-half the vertical. The vertical pressure (stress) is the product of the soil unit weight and depth, and is the major principal stress