The Vibration Characteristics of Ground of Rock Blasting in Silt-Rock Strata

Table 5

Energy percentage of each frequency band in different directions (%).

Frequency bands	a8	d8	d7	d6	d5	d4	d3	d2	d1
X	43.80	9.69	24.94	21.12	0.38	0.01	0.01	0.02	0.04
Y	67.02	1.81	11.25	19.41	0.46	0.01	0.01	0.01	0.02
Z	88.91	4.93	4.13	1.80	0.15	0.03	0.01	0.02	0.03