Predictive Analysis of Settlement Risk in Tunnel Construction: A Bow-Tie-Bayesian Network Approach

Figure 6

Variations in the TBM parameters at different excavation speeds (data from XW section): (a) total thrust versus excavation speed; (b) cutter head torque versus excavation speed; (c) face pressure versus excavation speed; (d) grouting pressure versus excavation speed.

(a)

(b)

(c)

(d)