Blasting Vibration Safety Criterion Analysis with Equivalent Elastic Boundary: Based on Accurate Loading Model

Table 6

Safety criterion data.

Distance (m)	Surrounding rock		Tunnel liner
	Peak velocity (cm/s)	Maximum effective tensile stress (MPa)	Peak velocity (cm/s)	Maximum effective tensile stress (MPa)
10	11.33	2.337	3.162	1.050
20	7.099	0.4502	2.719	0.7434
30	3.370	0.1795	1.918	0.5172
50	2.505	0.1233	1.057	0.2677
80	1.455	0.1111	0.7643	0.1784