The Octave program fqKVMBscan.m presents the model's representation of a soil's dynamic behavior under different shaking frequencies. For the case of 30% porosity, Figure 68 shows that increasing hydraulic conductivity (Kd) should produce more friction as represented in the KV damping ratio when the pore fluids are coupled to the frame.
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Interestingly, when one looks at uncoupled behavior, the reverse is true. Increasing permeability decreases the KV damping ratio, and there is less friction at those high frequencies.