Construction Sequence Optimization and Settlement Control Countermeasures of Metro Tunnels Underpassing Expressway

Table 3

The vault settlement value of the tunnel and haunch horizontal convergence value under different construction schemes (unit: mm).

Monitoring points	P1	P2	P3	S1	S2	S3
Case 1	−6.81	−6.28	−42.13	−4.76	−4.24	−12.24
Case 2	−8.16	−9.18	−46.89	−4.72	−4.23	−12.36
Case 3	−10.32	−9.38	−52.58	−4.83	−4.26	−12.60