Research Article
The Evaluation Method of Rock Mass Stability Based on Natural Frequency
Table 1
Rock natural frequency and measurement conditions.
| | Number | FLV (Hz) | FToV (Hz) | FTrV1 (Hz) | FTrV2 (Hz) | l (cm) |
| | 1 | 34.5 | 55.5 | 12.0 | 12.0 | 25 | | 2 | 32.0 | 54.5 | 11.5 | 10.5 | 24 | | 3 | 31.0 | 53.5 | 11.0 | 10.0 | 23 | | 4 | 30.0 | 50.0 | 10.5 | 8.5 | 22 | | 5 | 30.0 | 48.5 | 10.5 | 7.5 | 21 | | 6 | 29.5 | 46.5 | 10.0 | 6.5 | 20 | | 7 | 29.0 | 45.5 | 10.0 | 6.0 | 19 | | 8 | 28.0 | 42.0 | 9.5 | 4.5 | 18 |
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