Study on Internal Vibration Law and Vibration Reduction of Xiaoxiku Tunnel Blasting

Table 3

Statistics of peak vibration velocity of the cut test.

Blasthole time delay (ms)	0	3	4	5	6	7
Peak vibration velocity of cut hole(cm/s)	2.08	0.74	0.67	0.56	0.42	0.30
Peak vibration velocity of full section(cm/s)	2.08	1.25	1.03	1.28	1.59	1.47