Research Article
Wedge Instability Model Improvement of Shield Tunnel Excavation Face under Inclined Surface
Figure 8
The relationship between active pressure and surface inclination angle under different cohesive forces: (a) the cohesion of soil c = 3.5 kPa (γ = 20 kN/m3), (b) the cohesion of soil c = 35 kPa (γ = 20 kN/m3), (c) the cohesion of soil c = 105 kPa (γ = 20 kN/m3), (d) the cohesion of soil c = 210 kPa (γ = 20 kN/m3), and (e) the cohesion of soil c = 350 kPa (γ = 20 kN/m3).
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| (b) |
| (c) |
| (d) |
| (e) |