Pasternak Model-Based Tunnel Segment Uplift Model of Subway Shield Tunnel during Construction

Table 3

The model parameters.

Parameters	Values
Unit weight of grouting and water, γ	15 kN·m^−3/10 kN·m^−3
Grouting pressure, p	0.6 MPa
Static buoyancy, FJ	378 kN
Dynamic buoyancy, FD	1860 kN
Unit length gravity of segment, W	154 kN
Equivalent bending stiffness, EIeq	6.9 × 10^7 kN·m^2
Coefficient of subgrade modulus, K	35 MPa·m^−1
Shear stiffness, G	1.53 × 10^5 kN·m^−1
Natural density of soil, ρ	19 g·cm^−3