Table 4 Comparison between the actual value and determined by SHGO.

From: Determination of stiffness and strength parameters for the hardening soil model based on the simplicial homology global optimization and triaxial compressive test

 

c (kPa)

ϕ (°)

Rf

E50ref (kPa)

m

Li et al

23.71

32.73

0.76

22,319.00

0.60

SHGO

28.36

34.30

1.00

26,013.85

0.50

Relative error (%)

19.62

4.79

31.06

16.55

17.22