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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 Ratio 0.5

Answer 1