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

Table 1

Monitoring data of the particle vibration velocity of the cut hole.

Serial number	Distance (m)	Explosive charge Q (kg)	Explosive charge in cut hole Q (kg)	Maximum vibration speed Vmax (cm/s)
				Horizontal radial direction	Horizontal tangential direction	Vertical direction
1	40	156	11.8	1.23	1.25	1.93
2	45			0.98	0.82	1.82
3	50			0.87	0.94	1.45
4	42.1	162	12.6	1.02	1.21	1.7
5	47.1			0.98	0.87	1.39
6	52.1			0.68	0.81	1.24
7	44.1	156	12.8	1.12	1.13	1.76
8	49.1			0.74	0.75	1.35
9	54.1			0.8	0.83	1.29
10	46.3	132	10.8	0.86	0.87	1.48
11	51.3			0.68	0.68	1.34
12	56.3			0.55	0.73	1.16
13	48.1	144	12.4	0.88	0.89	1.58
14	53.1			0.56	0.68	1.08
15	58.1			0.64	0.54	0.88
16	52.3	162	12.6	0.83	0.78	1.11
17	57.3			0.67	0.69	1.01
18	62.3			0.47	0.58	0.87
19	54.6	162	12.6	0.85	0.73	1.07
20	59.6			0.58	0.70	1.08
21	64.6			0.59	0.53	0.97