Table 3 Physical simulation test of the original rock parameters and target parameters(\(\:{\text{C}}_{\text{L}}\)=400).

From: Influence of different mining locations on deformation characteristics of overlying strata on gently anti-dip high-steep mining slope

Lithologic characters

Density(g/cm3)

Force of cohesion

Angle of internal friction(°)

Coal original rock parameters

1.47

2.62 MPa

45.68

Theoretical parameters of coal scale material

1.47

6.55 kPa

45.68

Siltstone original rock parameters

2.74

21.41 MPa

62.19

Theoretical parameters of siltstone scale material

2.74

53.53 KPa

62.19

Limestone original rock parameters

2.69

20.66 MPa

50.94

Theoretical parameters of limestone scale material

2.69

51.64 kPa

50.94

Material parameters of siltstone in the model

2.72

55.40 KPa

61.76

Material parameters of limestone in the model

2.66

52.78 KPa

51.28

Back to article page