Geological condition

Rock properties

Proportion

G₁

σ_c = 110 MPa, σ_t = 12.5 MPa, τ = 8.8 MPa, 2β = 140˚, CAI = 4.9

45.0%

29%

G₂

σ_c = 100 MPa, σ_t = 15.3 MPa, τ = 27.2 MPa, 2β = 130˚, CAI = 1.26

10%

G₃

σ_c = 70 MPa, σ_t = 7.6 MPa, τ = 12.3 MPa, 2β = 150˚, CAI = 7

24.0%

27%

G₄

σ_c = 50 MPa, σ_t = 4.25 MPa, τ = 16.2 MPa, 2β = 144˚, CAI = 3.4

31.0%

34%