Numerical Simulation of Empty-Hole Effect during Parallel-Hole Cutting under Different In Situ Stress Conditions

Table 3

Comparison of different schemes and parameter setting.

Scheme	No.	q (MPa)	p (MPa)		Purpose
I	1	0	0	1	The impact of overall changes in the in situ stress field
	2	2	2	1
	3	5	5	1
	4	10	10	10
II	1	2	0	+∞	The impact of changes in the vertical stress field
	2	2	2	1
	3	2	5	0.4
	4	2	10	0.2
III	1	0	2	0	The impact of changes in the horizontal stress field
	2	2	2	1
	3	5	2	2.5
	4	10	2	5