Research Article
Investigations of Coal-Rock Parting-Coal Structure (CRCS) Slip and Instability by Excavation
Table 4
Support element properties in the model.
| | | Property | Value |
| | Cable | Elastic modulus (GPa) | 120 | | Tensile yield strength (kN) | 260 | | Stiffness of the grout (N/m2) | 6.3e9 | | Cohesive capacity of the grout (N/m) | 6e6 |
| | Beam | Elastic modulus (GPa) | 120 | | Tensile yield strength (kN) | 500 | | Compressive yield strength (kN) | 500 | | Interface normal stiffness (GPa/m) | 13.5 | | Interface shear stiffness (GPa/m) | 13.5 |
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