Dynamic Response and Time-Frequency Characteristic of Dangerous Rocks under the Combined Action of Rock Cavity Weathering and Earthquake

Table 4

The energy proportion of frequency band of each monitoring block in Model 1.

Rock block	Frequency (Hz)
	0∼15.625	15.625∼31.25	31.25∼46.875	46.875∼62.5	62.5∼78.125	78.125∼93.75	93.75∼109.375	109.375∼125	125∼250
A1	77.2000	14.0525	1.6299	6.4860	0.0263	0.0169	0.3567	0.1229	0.1088
A2	77.2208	14.0817	1.5863	6.4787	0.0282	0.0163	0.3558	0.1190	0.1132
A3	77.2426	14.0601	1.5815	6.4805	0.0275	0.0168	0.3584	0.1224	0.1102
A4	77.2501	14.0183	1.5826	6.4951	0.0310	0.0187	0.3581	0.1247	0.1214
B1	77.2471	14.0177	1.6218	6.4765	0.0266	0.0188	0.3557	0.1238	0.112
B2	77.2522	14.0645	1.5746	6.4633	0.0298	0.0178	0.3575	0.1175	0.1228
B3	77.2718	14.0387	1.5787	6.4672	0.0286	0.0178	0.3582	0.1217	0.1173
B4	77.2934	14.0448	1.5765	6.4657	0.0234	0.0204	0.3508	0.1166	0.1084