Research Article
The Load Capacity Model and Experimental Tests of a New Yielding Steel Prop
Table 5
Stable load capacity calculated by theoretical model and by tests for different specimens.
| Prop specimens | Number of steel balls | Stable load capacity calculated by theoretical model (kN) | Stable load capacity by tests (kN) | Relative rate (%) |
| 1 | 4 | 178 | 185 | 3.8 | 2 | 10 | 446 | 468 | 4.7 | 3 | 20 | 892 | 920 | 3.0 | 4 | 30 | 1338 | 1400 | 4.4 |
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