Table 1
Actual value and target value of surrounding rock material parameters
Category
Density/(kN/m
3
)
Elastic module/GPa
Poisson's ratio
Inner friction angle/°
Cohesion/MPa
Prototype
21
0.1
0.3
25
0.05
Model
21
0.0041
0.29
24.7
0.0021
Category
Density/(kN/m
3
)
Elastic module/GPa
Poisson's ratio
Inner friction angle/°
Cohesion/MPa
Prototype
21
0.1
0.3
25
0.05
Model
21
0.0041
0.29
24.7
0.0021
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