(Is a 14 or 4.88 ? ) A dual wheel having a load per tire of
9,000 lb, 120 psi pressure, and a 14-inch center to center wheel
spacing is placed on an infinite space layer with a modulus of
elasticity of 20,000 psi. Calculate the pavement displacement at a
depth of 15 inches at the following radial distances from the
centerline of one tire between the two tires: r = 0, 3, 6, 9, and
12 inches. Assume Poisson...