Research Article
Experimental Study on Strength, Acoustic Emission, and Energy Dissipation of Coal under Naturally and Forcedly Saturated Conditions
Table 2
Water content of three kinds of coal samples.
| | Type of coal sample | Sample ID | Water content (%) | Average water content (%) | Standard deviation (%) |
| | Natural | A1 | 1.52 | 1.51 | 0.020 | | A2 | 1.51 | | A3 | 1.54 | | A4 | 1.48 | | A5 | 1.50 |
| | Naturally saturated | B1 | 2.12 | 2.06 | 0.090 | | B2 | 2.14 | | B3 | 1.95 | | B4 | 1.94 | | B5 | 2.13 |
| | Forcedly saturated | C1 | 4.30 | 4.17 | 0.092 | | C2 | 4.24 | | C3 | 4.09 | | C4 | 4.05 | | C5 | 4.17 |
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