Research Article
Analysis of Support Design in Weak Rock Drift Using a Systematic Approach
Table 6
The properties of the support elements employed in the analyses.
| | Material type | Unit weight (MN/m3) | Young’s modulus (GPa) | Poisson’s ratio (υ) | Cohesion, c (MPa) | Internal friction angle ϕ (°) | Compressive strength (MPa) | Tensile strength (MPa) |
| | Shotcrete | 0.024 | 24 | 0.20 | 2 | 37 | 30 | 4.5 | | Rock bolt | 0.079 | 200 | — | — | — | 365 | 365 | | Wire mesh | — | 200 | 0.35 | — | — | — | 300 | | Cable bolt | 0.078 | 202 | — | 2 | 25 | — | 1860 |
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