Research Article
Study on the Stability of Surrounding Rock of Underground Circular Cavern Based on the Anchor Reinforcement Effect
Table 1
for different rocks [
31].
| Rock type | (GPa) |
| Hard rock | 5.00∼10.00 | Soft rock | 1.50∼3.00 | Weathered rock | 1.00∼2.00 | Mudstone | 1.20∼2.50 | Diluvium sand | 0.40∼0.70 | Gravel | 0.40∼0.70 | Diluvium clay | 0.40∼1.00 | Shock layer sand | 0.05∼0.20 |
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