Study of Impact Dynamic Characteristics and Damage Morphology of Layered Rock Mass

Table 1

Basic mechanical parameters of rock mass.

Rock type	Density (g·cm^-3)	Wave velocity (m·s^-1)	Wave impedance (g·cm^-3·m·s^-1)	Uniaxial compressive strength (MPa)	Pratt’s hardness factor f
Dolomite	2.840	5320	151088	216	21.6
Gray sandstone	2.416	4145	10014	88.3	8.8
Limestone	2.300	3987	9170	60	6.0