Vibration Signal Analysis of Water Seal Blasting Based on Wavelet Threshold Denoising and HHT Transformation

Table 5

Instantaneous peak energies of the four charge structures.

Detonatorsection	Conventional charge structure (cm^2·Hz/s^2)	Water interval charge at both ends (cm^2·Hz/s^2)	Water interval charge at the orifice (cm^2·Hz/s^2)	Water interval charge at the hole bottom (cm^2·Hz/s^2)
1	10.85	13.97	13.18	8.39
3	2.76	5.31	2.11	1.13
5	0.85	6.50	1.32	0.38
7	0.90	9.32	1.45	0.43
9	0.68	7.22	2.69	0.38
11	1.13	2.44	1.19	0.47
13	1.29	6.18	0.86	0.43
Total energy	18.46	50.94	22.8	11.61