(Solved):   3. A layer of saturated clay 4m thick is overlain by sand 5m deep, the water table being 3 ...

 

3. A layer of saturated clay 4m thick is overlain by sand 5m deep, the water table being 3m below the surface. The saturated unit weights of the clay and sand are 19 and 20kN/m?, respectively, above the water table the unit weight of the sand is 18kN/m². Plot the values of total vertical stress and effective vertical stress against depth.