Research Article
Model Test Study on the Antibreaking Technology of Reducing Dislocation Layer for Subway Interval Tunnel of the Stick-Slip Fracture
Table 4
Basic mechanical parameters of similar materials in surrounding rock.
| Parameter | Modulus of elasticity (MPa) | Bulk density (kN·m−3) | Cohesive (kPa) | Internal friction angle (°) |
| Archetypal surrounding rock | 1300∼6000 | 17∼20 | 20∼200 | 20∼27 | Tunnel rock similar material | 29.6 | 12.6 | 3.3 | 24.5 |
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