Research Article
Investigations of Coal-Rock Parting-Coal Structure (CRCS) Slip and Instability by Excavation
Table 3
Comparisons of UCS and elastic modulus of coal and rock between experiments and simulations.
| | Mineral | UCS (MPa) | Error (%) | E (GPa) | Error (%) | | Experiment | Simulation | Experiment | Simulation |
| | Fine sandstone | 78.62 | 77.55 | 1.36 | 15.2 | 14.6 | 3.95 | | Siltstone | 38.96 | 39.65 | ā1.77 | 9.62 | 9.20 | 4.37 | | Coal | 5.48 | 5.36 | 2.19 | 4.06 | 3.65 | 10.10 | | Mudstone | 14.80 | 14.58 | 1.48 | 7.80 | 7.23 | 7.31 |
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