Table 2 Strength parameters of M-C and H-B strength criteria for granite sample.
From: Strain-softening model for granite and sandstone based on experimental and discrete element methods
Mohr-Coulomb | Hoek- Brown | |
|---|---|---|
Peak compressive strength | σcpeak = 147.7 MPa cpeak = 21.39 MPa φpeak = 57.7° R2 = 0.97 | GSI = 100 σci = 133.98 MPa mbpeak = 40.47 speak = 1 apeak = 0.5 R2 = 0.99 |
Residual compressive strength | σcres = 27.78 MPa cres = 4.70 MPa φres = 52.6° R2 = 0.96 | GSI = 61.65 σci = 133.98 MPa mbres = 10.29 sres = 0.014 ares = 0.503 R2 = 0.95 |
