Table 1 Parameters of the rock mass in the numerical simulation.

From: Prediction of potential shear slip surface in locked rock mass of gently inclined counter Tilted rock slope under mining effects

rock

density/(kg/m3)

bulk modulus/GPa

tensile strength/MPa

internal friction angle/(°)

cohesion/MPa

Poisson’s ratio

quartz sandstone

2500

15

0.91

42

28

0.19

carbonaceous shale

2200

5

0.52

37

15

0.25

coal

1700

0.5

0.31

36

0.43

0.31

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