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

Table 5

The energy proportion of frequency band of each monitoring block in Model 2.

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	80.7133	6.4820	8.5195	2.0856	0.0681	0.0614	1.4580	0.3984	0.2136
A2	83.5150	5.4530	4.6267	2.2388	0.2116	0.2532	1.1211	1.1173	1.4633
A3	85.8842	3.2610	3.7347	2.5616	0.0366	0.0334	3.3847	0.8904	0.2134
A4	90.5923	3.5745	1.3759	1.8918	0.0621	0.0661	1.9094	0.1736	0.3544
B1	84.5120	5.4396	6.3945	2.0201	0.0735	0.1264	0.8927	0.2952	0.2460
B2	85.5028	4.4076	2.8737	4.0405	0.0946	0.1132	2.4300	0.3708	0.1669
B3	88.1350	2.8491	1.4398	4.8246	0.0386	0.0406	2.1174	0.4851	0.0697
B4	91.3318	1.4845	1.9021	3.7428	0.0158	0.0614	1.1533	0.1979	0.1103