Performance Degradation of Subsea Shield Tunnel Segment Accounting for Concrete Strength Loss and Steel Bar Corrosion

Table 4

Mechanical parameters of segment concrete for the inner and outer layers.

Segment parts	Elasticity modulus (GPa)	Poisson’s ratio	Fracture energy (N/m)	Viscosity
Outer layer	20.709	0.2	150	1e − 5
Inner layer	38.928	0.2	150	1e − 5