Parameters

Red sandstones

White sandstones

Purple sandstones

Sandstone with intercalation of pelites

E_m (MPa)

4375.2

5765

4102

2079

RMR

42

42

32

21

c (kPa)

200 - 300

200 - 300

100 - 200

100 - 200

φ (˚)

25 - 35

25 - 35

15 - 25

15 - 25

c_é (kPa)

210

210

160

105

φ_é (˚)

29.3

29.3

16

18.8

E_mé (GPa)

6.3

6.3

3.55

1.88

R_cé (kPa)

717

717

424.6

293.3

R_té (kPa)

245.9

245.9

241

150