Research Article
Study on Mechanism of Cumulative Directional Blasting of Brittle Karst Limestone in the Guizhou Province
| Number | Peak load (kN) | Tensile strength (MPa) | Relative strain |
| 1 | 8.29 | 4.22 | 0.0037 | 2 | 7.89 | 4.83 | 0.0045 | 3 | 9.77 | 4.98 | 0.0053 | Average value | 8.65 | 4.68 | 0.0045 |
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