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

Table 6

The energy proportion of frequency band of each monitoring block in Model 3.

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	94.4588	4.1014	0.3197	0.6587	0.0307	0.0612	0.1803	0.0776	0.1115
A2	95.1216	3.1722	0.3503	0.9695	0.0199	0.0668	0.1405	0.0778	0.0815
A3	95.5543	0.3853	0.5169	2.8412	0.0622	0.1553	0.1422	0.2395	0.1031
A4	97.7512	0.5796	0.3263	0.9621	0.0175	0.0532	0.2360	0.0442	0.0299
B1	96.2517	3.5607	0.0317	0.1204	0.0010	0.0037	0.0199	0.0077	0.0031
B2	97.5198	2.2302	0.0320	0.1483	0.0021	0.0061	0.0417	0.0129	0.0069
B3	98.6036	1.0635	0.1034	0.1618	0.0021	0.0047	0.0367	0.0178	0.0064
B4	99.3674	0.4315	0.0554	0.0953	0.0029	0.0063	0.0296	0.0090	0.0026