Drilling Performance of Rock Drill by High-Pressure Water Jet under Different Configuration Modes

Table 1

Rock properties.

Rock	Compressive strength; (MPa)	Elastic modulus; E (GPa)	Poisson’s ratio; μ	Tensile strength; T (MPa)	Density; ρ(g/cm^3)
Concrete	23.6	9.5	0.22	2.5	2.47