Exact Solution for the Torsional Vibration of an Elastic Pile in a Radially Inhomogeneous Saturated Soil

Figure 4

Comparison of torsional impedance of saturated soil solution with the reduced dry soil solution for a radially inhomogeneous soil (D_sm = D_s0 = 0, t_m/r₀ = 0.5, r₀ = 0.3 m).

(a)

(b)