CE Board HGE Problem 26 (Hydraulics and Geotechnical Engineering)

(CE NOV 2023) A clay layer 5 m. thick rests beneath a deposit of submerged sand 8 m. thick. The top of the sand is located 3 m. below the surface of a body of water. The saturated unit weight of the sand is 25 kN/m³, and the clay is 20 kN/m³

a. evaluate the total vertical pressure at mid-height of the clay layer
b. evaluate the pore water pressure at mid-height of the clay layer
c. obtain the intergranular stress or effective stress at mid-height of the clay

CE NOV 2023