Experiment and Analysis of Wedge Cutting Angle on Cutting Effect

Table 9

Test results of blasting peak vibration velocity.

Cutting mode	Location	Measuring point number	Peak vibration velocity ()			Resultant velocity ()	Average resultant velocity ()	Main frequency (Hz)
			Radial direction	Tangential direction	Vertical direction			Radial direction	Tangential direction	Vertical direction
65° wedge cutting	Inclined side	1^#	10.06	7.76	11.82	18.59	20.42	7.5	20.2	25.9
		2^#	10.71	10.37	12.13	22.25		5.8	12.3	39.1
	Vertical side	3^#	18.15	7.91	15.68	27.05	25.21	17.2	19.2	32.3
		4^#	13.22	6.17	16.47	23.37		16.3	14.0	38.6
69° wedge cutting	Inclined side	1^#	13.13	7.98	15.11	21.89	23.11	11.4	18.5	66.9
		2^#	11.62	13.57	18.85	24.32		37.8	16.9	90.1
	Vertical side	3^#	17.93	10.29	21.26	29.41	30.23	8.2	20.8	78.2
		4^#	22.74	22.52	20.30	31.04		55.6	33.3	66.7
73° wedge cutting	Inclined side	1^#	12.93	16.76	11.55	24.98	27.27	9.5	8.3	63.3
		2^#	14.68	18.12	20.58	29.55		25.8	9.3	82.9
	Vertical side	3^#	23.91	25.43	22.60	32.46	33.06	18.6	26.2	110.2
		4^#	22.20	10.01	24.93	33.66		20.2	75.8	125.0
77° wedge cutting	Inclined side	1^#	16.15	19.38	21.12	33.12	34.92	53.8	63.7	16.6
		2^#	15.56	18.93	20.78	36.72		90.5	58.5	106.0
	Vertical side	3^#	23.30	24.83	27.39	44.17	43.36	125.0	76.9	30.3
		4^#	25.17	26.23	21.55	42.55		13.7	125.0	18.9
81° wedge cutting	Inclined side	1^#	19.92	21.55	26.17	41.44	42.36	95.7	18.3	106.5
		2^#	21.36	19.66	27.78	43.28		110.5	110.5	110.5
	Vertical side	3^#	27.65	29.11	35.49	48.19	48.76	125.0	25.8	90.0
		4^#	23.81	24.75	36.04	49.33		113.6	125.0	113.6