Numerical Simulation of Surface Subsidence and Backfill Material Movement Induced by Underground Mining

Table 1

Mechanical parameters of rock masses.

Macro parameters	Ore body	Slate	Marble
Density, ρ (kg/m^3)	3556	2770	2660
Uniaxial compression strength, σc (MPa)	20.01	10.43	5.98
Young’s modulus, E (GPa)	25.12	15.85	14.71
Poisson’s ratio, ν	0.19	0.21	0.27