Table 3: The nonlinear data of sand and clay [27].
γeff(%) lgγeff attenuation coefficient of shear modulus attenuation coefficient of damping
sand clay sand clay
≤1.0×10-4 -4.0 1.000 1.000 2.50 0.50
3.16×10-4 -3.5 0.913 0.984 2.50 0.80
1.00×10-3 -3.0 0.761 0.934 2.50 1.70
3.16×10-3 -2.5 0.565 0.826 3.50 3.20
1.00×10-2 -2.0 0.400 0.656 4.75 5.60
3.16×10-2 -1.5 0.261 0.443 6.50 10.0
1.00×10-1 -1.0 0.152 0.246 9.25 15.5
0.316 -0.5 0.076 0.115 13.8 21.0
1.00 0.0 0.037 0.049 20.0 24.6
3.16 0.5 0.013 0.049 26.0 24.6
≥10.00 1.0 0.004 0.049 29.0 24.6