Blasting for Fracturing and Improving the Permeability of Deep, Soft, Outburst Prone Coal Seams Using Blasthole and Relief Hole Drilled into the Underlying Stratum: Optimal Hole Distance

Table 2

The configuration of the explosive parameters.

/kg·m^-3	/m·s^-1	/Pa	/Pa				/J·m^-3
1200	3200			4.15	0.9	0.35

Note: is the material density. is the detonation velocity.