Inverse Analysis and Modeling for Tunneling Thrust on Shield Machine

Table 5

Engineering applications of the shield tunneling thrust model.

General formula of the model	𝐹=𝛽1𝑊𝛿^2+(𝛽2𝑊+𝛽3𝑃)𝐷^2
Thrust expression of Beijing Metro Line 9	𝐹=9.1×10^3𝑊𝛿^2+(0.61𝑊+0.39𝑃)𝐷^2
Thrust expression of Shenzhen Metro Line 2	𝐹=8.9×10^3𝑊𝛿^2+(0.59𝑊+0.39𝑃)𝐷^2