Research Article
Analysis and Application on Controlling Thick Hard Roof Caving with Deep-Hole Position Presplitting Blasting
Table 3
Fracture parameters of specimens.
| | | Number | Pmax (KN) | B (mm) | Diameter (mm) | F | a (mm) | KIC (MPa·m0.5) |
| | MS-1 | 16.63 | 24.3 | 48.6 | 1.0 | 33.6 | 20.0 | | MS-2 | 15.72 | 25.1 | 48.5 | 32.0 | | MS-3 | 17.12 | 25.2 | 46.9 | 32.5 | | Average | 16.49 | 24.87 | 48.0 | 32.7 |
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