Research Article
The Static Breaking Technique for Sustainable and Eco-Environmental Coal Mining
Table 1
The main mechanical parameters of limestone needed for the experiment.
| Number | Specification | Max. compressing force/KN | Compressive strength/MPa | Poisson’s ratio | Modulus of elasticity E/GPa | Diameter/mm | Basal area/mm2 | Height/mm |
| 1 | 50.90 | 2034.76 | 104.60 | 98.70 | 48.51 | 0.23 | 28.4 | 2 | 51.00 | 2042.76 | 106.60 | 113.05 | 55.34 | 0.26 | 30.2 | 3 | 50.94 | 2037.96 | 102.46 | 102.73 | 50.41 | 0.22 | 25.9 |
| Average | 104.83 | 51.42 | 0.237 | 28.12 |
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