Research Article
Physical Modeling of Displacement and Failure Monitoring of Underground Roadway in Horizontal Strata
Table 4
Prototype and model physical and mechanical parameters of the bolt.
| | Bolt type | Load value (N) | Pretightening force (N) | Length (m) | Diameter (cm) |
| | Bolt in roof | Prototype parameters | 500000 | 150000 | 6 | 1.2 | | Parameters in the model | 247.0 | 74.1 | 0.4 | 0.05 |
| | Bolt on both sides | Prototype parameters | 160000 | 50000 | 4 | 00.8 | | Parameters in the model | 79.0 | 24.7 | 0.27 | 0.05 |
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