Research Article

Wedge Instability Model Improvement of Shield Tunnel Excavation Face under Inclined Surface

Figure 6

The relationship between the ground inclination and influence coefficients Nc, Nγ, and Nq: (a) the relationship between Nc and ground inclination, (b) the relationship between Nq and ground inclination, and (c) the relationship between Nγ and ground inclination.
(a)
(b)
(c)