Study on Mechanism of Cumulative Directional Blasting of Brittle Karst Limestone in the Guizhou Province

Table 6

Simulation parameters.

Materials	Symbol	The numerical
Explosive	ρ/kg/m^3	1100
	D/m/s	3500
	P/GPa	3.5
	A/Pa	214
	B/Pa	0.182
	R1	5.15
	R2	0.9
	ω	0.15
	E0/J/m^3	4.192
Air	ρ/kg/m^3	1.29
	PC	−1
	Mμ	1.75E − 5
	PR	0
	C0–C3	0
	C4, C5	1
	E0/J/m^3	2.5E − 6
	C6	0
	V0	1
Copper	ρ/kg/m^3	8.9.3
	C	344
	S1	1.49
	S2	0
	S3	0
	a	0.47
	μμ	2.02
	E0	0
	—	—
Concrete	ρ/kg/m^3	2609
	A	0.32
	D1	0.04
	/GPa	10.49
	B	1.76
	D2	1
	SFMAX	7
	C	0.012
	EPSO	1.000E − 06