Research Article
Experimental Investigation on the Influence of Water Content on the Mechanical Properties of Coal under Conventional Triaxial Compression
Table 3
Mechanical parameters of specimens under triaxial compression.
| | Specimen no. | Water content (%) | Confining pressure (MPa) | Triaxial strength (MPa) | Elastic modulus (GPa) | Loss rate (%) | | Designed | Real | Strength | Elastic modulus |
| | DC -4 | 0 | 0 | 2 | 61.8 | 4.1 | 0 | 0 | | DC -5 | 0 | 4 | 66.7 | 3.8 | 0 | 0 | | DC -6 | 0 | 6 | 75.7 | 4.1 | 0 | 0 | | DC -7 | 0 | 10 | 85.6 | 4.0 | 0 | 0 |
| | WC1-4 | 1.80 | 1.69 | 2 | 48.7 | 3.4 | 21.2 | 17.1 | | WC1-5 | 1.78 | 4 | 63.8 | 3.2 | 4.3 | 15.8 | | WC1-6 | 1.77 | 6 | 70.3 | 3.5 | 7.1 | 14.6 | | WC1-7 | 1.82 | 10 | 75.4 | 3.6 | 11.9 | 10.0 |
| | WC2-4 | 3.60 | 3.57 | 2 | 40.6 | 2.8 | 34.3 | 31.7 | | WC2-5 | 3.56 | 4 | 50.8 | 2.8 | 23.8 | 26.3 | | WC2-6 | 3.52 | 6 | 58.3 | 3.1 | 23.0 | 24.4 | | WC2-7 | 3.62 | 10 | 67.2 | 3.3 | 21.5 | 17.5 |
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