Simulation of the Uniaxial Mechanical Properties and Crack Evolution of Coal Pillar-Artificial Dam in Abandoned Mines

Table 1

Test parameter design.

Factor	Angle (°)	Width (mm)	Depth (mm)
Gradient	50	30	7.5
	60	30	7.5
	70	30	7.5
	80	30	7.5
	90	30	7.5