Research Article
Flowchart of DEM Modeling Stability Analysis of Large Underground Powerhouse Caverns
Table 5
Material property values used for rock supports in the numerical model.
| Supporting type | Elastic modulus (GPa) | Tensile yield strength (kN) | Grout stiffness (N/m/m) | Grout bond strength (Pa/m) |
| Bolt 25 | 200 | 196 | 17e9 | 56e9 | Bolt 28 | 200 | 240 | 18e9 | 63e9 | Bolt 32 | 200 | 320 | 19e9 | 72e9 | Anchor | 195 | 2000 | 17e9 | 56e9 |
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