Research Article
Study on Stress Disturbed Mechanism and Supporting Method of Weakly Cemented Roadway near Chambers
Table 2
Rock layer physical and mechanical parameters table.
| | Name of rock stratum | Density (kg/m3) | Bulk modulus (GPa) | Shear modulus (GPa) | Tensile strength (MPa) | Cohesion (MPa) | Internal friction angle (°) |
| | Siltstone 1# | 2450 | 0.70 | 0.49 | 0.96 | 4.84 | 40 | | Siltstone 2# | | Siltstone 3# |
| | Coal 1# | 1300 | 0.41 | 0.23 | 0.20 | 0.34 | 29 | | Coal 2# | | Coal 3# |
| | Mudstone 1# | 2620 | 0.39 | 0.24 | 0.25 | 2.42 | 40 | | Mudstone 2# | | Mudstone 3# |
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