Numerical Simulation Study on Construction Effect of Top-Down Construction Method of Suspended Diaphragm Wall for Deep and Large Foundation Pit in Complex Stratum

Table 6

Summary of the corresponding position of the maximum subsidence of the surface.

Working procedure	External surface of foundation pit (west)		External surface of foundation pit (east)
	Maximum settlement (mm)	Distance from foundation pit edge (m)	Maximum settlement (mm)	Distance from foundation pit edge (m)
The first excavation (−2.000 m)	−0.459	10.00	−0.476	10.00
The third excavation (−13.400 m)	−4.385	15.00	-4.393	15.00
The fifth excavation (−24.550 m)	−11.511	20.00	−11.511	20.00
The seventh excavation (−34.145 m)	−14.621	20.00	−14.526	20.00
The tenth excavation (−51.630 m)	−18.419	15.00	−17.778	15.00