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Table 3 Parameters of the dynamic shear modulus formula

From: Research on dynamic creep strain and settlement prediction under the subway vibration loading

Effective confining pressure/kPa

f

Coefficients

Correlation values

a 1

a 2

a 3

75

0.5

−4.16

18.52

18.35

0.993

1

−1.74

14.91

11.15

0.994

2

0.31

11.12

4.58

0.991

150

0.5

−3.9

20.5

5.8

0.996

1

−5.3

20.1

23.3

0.993

2

0.22

8.14

37.4

0.992