Research Article
A Discussion of Stability and Engineering Verification of Thin Immediate Roof under Uniform Load of the Rectangular Coal Roadway
Table 2
Rock bolt support parameters of 1905S roadway.
| | Parameter | Anchor bolt | Anchor cable | | Length (mm) | Distance (mm) | Row distance (mm) | Diameter (mm) | Preload (kN) | Length (mm) | Number/row | Row distance (mm) | Diameter (mm) | Preload (N·m) |
| | Roof | 2400 | 1200 | 1200 | 22 | 200 | 6500 | 2 | 2400 | 17.8 | 200 | | Two sides | 2400 | 1200 | 1200 | 22 | 200 | — | — | — | — | — |
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