A concrete wall 8 ft high and 3 ft thick is monolithic with a concrete base. The wall has water behind one face to a height of 6 ft, as shown.
Calculate the combined normal stresses at points A and B at the bottom of the wall in pounds per square inch and pounds per square foot. Consider a 1-ft length of wall. Assume the unit weight of concrete to be 150 pcf and the unit weight of water to be 62.4 pcf.
