Research Article
Experimental Study on the Influence of Specimen Shape on Rockburst Proneness of Red Sandstone
Table 6
Ejection characteristic information of specimens.
| Specimen shape | Specimen ID | Failure mode | Burst sound | Fragments ejection velocity | Fragments ejection quantity |
| Cylinder | RS-CL-1 | Tensile | Slight | Slow | Minor | RS-CL-2 | Tensile | Slight | ā | ā | RS-CL-3 | Tensile and shear | Slight | Slow | Minor | RS-CL-4 | Tensile and shear | Slight | Slow | Modest | RS-CL-5 | Tensile | Slight | Slow | Minor | RS-CL-6 | Tensile and shear | Slight | Slow | Modest |
| Cuboid | RS-CB-1 | Shear | Loud | Fast | Great | RS-CB-2 | Shear | Loud | Medium | Modest | RS-CB-3 | Shear | Loud | Fast | Great | RS-CB-4 | Tensile | Moderate | Slow | Modest | RS-CB-5 | Shear and tensile | Moderate | Medium | Modest | RS-CB-6 | Tensile | Moderate | Medium | Modest | RS-CB-7 | Shear | Loud | Fast | Great |
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