Research Article
Onsite Tests and Numerical Simulation of Broken Rock Zones in Surrounding Rocks of Seepage Roadways under Blasting
Table 1
Mechanical parameters of the calculation model for the seepage tunnel.
| Homogeneous degree (m) | Average elastic modulus (MPa) | Friction angle (°) | Average compressive strength (MPa) | Poisson ratio | 3 | 90000 | 37 | 200 | 0.25 |
| Permeability coefficient (m d-1) | Porosity | Pore pressure coefficient | Injury mutation coefficient | Coupling coefficient | The upper 1, the lower 0.001 | The upper 0.3, the lower 0.1 | 1 | 5 | 0.1 |
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