Table 3 Mechanical parameters of rock strata.

From: Elastoplastic analysis of surrounding rock in weakly cemented soft rock roadways and its support practice

lithology

h (m)

ρ (kg/m3)

E (GPa)

G (GPa)

φ (°)

C (MPa)

σt (MPa)

Fine sandstone

10.2

2351

3.58

2.89

45.2

5.26

3.78

Siltstone

6.5

2260

7.93

4.84

41.1

3.63

4.16

Sandy mudstone

7.3

2150

3.19

2.15

40.3

2.54

2.61

3 coal

3.6

1260

2.56

1.61

31.4

0.84

0.65

Sandy mudstone

6.8

2250

2.51

1.58

43.1

3.42

2.06

Fine sandstone

8.1

2351

3.58

2.89

45.2

5.26

3.78

Siltstone

8.5

2260

7.93

4.84

41.1

3.63

4.16

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