Experimental Study on Dynamic Response and Damage Evolution of Coal under Shocks by Multiple High-Pressure Air Blasting

Table 5

Vibration velocity results of each measuring point under multiple HPAB tests(cm/s).

Times	Distance of each measuring point/mm
	50 mm	110 mm	170 mm	310 mm
1	12.0910	8.9388	5.6011	3.4726
2	10.8377	6.5113	3.5221	2.0318
3	6.8987	4.4675	2.784	1.8943
4	7.1227	5.0010	2.8509	0.8065
5	4.4675	1.5223	1.0960	0.6423