Multiple Disturbances of Existing Tunnels Caused by Deep Excavation and New Shield Tunnel

Table 3

Change proportion of the typical section of the upline.

Typical section segment number of the upline	Content of monitoring	Disturbance caused by excavation of foundation pit (mm)	Disturbance caused by new tunnel tunneling (mm)	Proportion of change (%)
S513	Vertical displacement	−1.3	−0.1	−92.3
	Horizontal displacement	1.7	−2.4	−241.2
	Segment convergence	1.6	0.1	−93.8
	Differential settlement of ballast bed	0.5	0.8	60.0
S520	Vertical displacement	−0.8	0.8	−200.0
	Horizontal displacement	1.7	−1.1	−164.7
	Segment convergence	1.7	0.7	−58.8
	Differential settlement of ballast bed	−0.6	0.4	−166.7
S528	Vertical displacement	−0.7	0.7	−200.0
	Horizontal displacement	1.7	−1.8	−205.9
	Segment convergence	1.8	0.4	−77.8
	Differential settlement of ballast bed	0.0	0.3	/