Analysis and Application on Controlling Thick Hard Roof Caving with Deep-Hole Position Presplitting Blasting

Table 2

Mechanical parameters of rock mass.

n0	ρ0 (kg/m^3)	D0 (m/s)	b	μd	ξ	σtd (MPa)
10	1000	3200	0.25	0.2	1000	6.05