Displacement Characteristics of an Urban Tunnel in Silty Soil by the Shallow Tunnelling Method

Table 5

Statistics of total horizontal convergence (32 sections).

Position	Total horizontal convergence (cm)
	1.0∼2.0	2.0∼3.0	3.0∼4.0	4.0∼5.0	5.0∼6.0	6.0∼7.0	8.0∼9.0	Maximum	Average
Arch shoulder	0	0	0	7	22	3	0	6.38	5.86
Arch waist	0	6	19	5	2	0	0	5.42	3.68
Arch foot	4	16	10	2	0	0	0	4.36	2.86