Geological Strength

Index (GSI)

Zone

Hoek Brown Parameter

Mohr-Coulomb Parameter

σci (MPa)

mb

s

a

C (MPa)

ϕ

σt (MPa)

Erm (MPa)

v

25

Hanging Wall

2

1.71

0.00024

0.53

0.095

29.90

−0.00028

47.88

0.3

Footwall

5

1.71

0.00024

0.53

0.13

36.73

−0.0007

119.71

0.3

Quartz Vein

29

1.71

0.00024

0.53

0.23

49.74

−0.004

694.32

0.2

37.5

Hanging Wall

2

2.68

0.00096

0.51

0.12

33.55

−0.00072

107.61

0.3

Footwall

5

2.68

0.00096

0.51

0.16

40.73

−0.0018

269.025

0.3

Quartz Vein

29

2.68

0.00096

0.51

0.30

53.76

−0.01

1560.34

0.2

50

Hanging wall

2

4.19

0.0038

0.50

0.145

37.19

−0.0018

245.74

0.3

Footwall

5

4.19

0.0038

0.50

0.20

44.43

−0.0046

614.37

0.3

Quartz Vein

29

4.19

0.0038

0.50

0.39

57.01

−0.026

3563.36

0.2

62.5

Hanging Wall

2

6.55

0.015

0.50

0.17

40.81

−0.0047

461.26

0.3

Footwall

5

6.55

0.015

0.50

0.24

47.92

−0.011

1153.15

0.3

Quartz Vein

29

6.55

0.015

0.50

0.54

59.68

−0.068

6688.27

0.2

75

Hanging Wall

2

10.23

0.06

0.50

0.21

44.33

−0.012

653.08

0.3

Footwall

5

10.23

0.06

0.50

0.31

51.14

−0.03

1632.7

0.3

Quartz Vein

29

10.23

0.06

0.50

0.86

61.67

−0.17

9469.66

0.2