Consider gravity loading under complete lateral restraint in flat, stratified ground where each stratum is homogeneous, isotropic, and linearly elastic. Assume compression is positive, ν is Poisson’s ratio, z is depth, and γ is average specific weight to any particular depth. A 76.2 m thick, water-bearing sandstone is encountered at a depth of 396 m. Water pressure at the top of the sandstone is 552 kPa. Estimate the total and effective stresses at the center of the sandstone.