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 11

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)	−0.467	10.00	−0.482	10.00
The third excavation(−13.400 m)	−4.380	15.00	−4.369	15.00
The fifth excavation(−24.550 m)	−11.468	20.00	−11.594	15.00
The seventh excavation(−34.145 m)	−14.601	20.00	−14.741	15.00
The first excavation(−2.000 m)	−15.600	20.00	−15.913	15.00