Distribution Features of the Minimum Rock Cover Thickness of the Surrounding Rock Self-Stability of the Metro Tunnel in the Soil-Rock Dualistic Stratum

Table 9

Statistical table of ground surface settlement of the station tunnel.

Name	Scope (mm)	Mean value (mm)	Coefficient of variation	Standard deviation (mm)	The size relationship between Hr and MRCT-SRS
Zhiquan Road Station	1.37 ∼ 6.22	2.29	0.36	1.18	Hr > MRCT-SRS
Haichuan Road Station	0.18 ∼ 9.97	4.59	1.87	2.45	Hr > MRCT-SRS
Junfeng Road Station	2.03 ∼ 12.59	6.37	2.09	3.05	Hr > MRCT-SRS
Zhongshan Park Station	17.31 ∼ 71.54	37.58	0.35	13.30	Hr < MRCT-SRS
Jiangxi Road Station	16.79 ∼ 76.98	46.33	0.27	12.69	Hr < MRCT-SRS
Zhanshan Road Station	21.19 ∼ 80.96	54.75	0.31	16.97	Hr < MRCT-SRS