Excavation Sequence and Surrounding Rock Mass Stability of Large-Scale Underground Engineering with 8 Tunnels

Table 5

Stress at the top and left sidewall points in the shotcrete layer.

Tunnel	Location	IES1		IES2		IES3
		Min. (MPa)	Max. (MPa)	Min. (MPa)	Max. (MPa)	Min. (MPa)	Max. (MPa)
#1	Left	6.79	7.33	8.74	9.54	6.76	7.22
	Top	1.01	1.64	1.19	1.99	0.89	1.51
#2	Left	6.85	7.44	8.87	9.61	6.78	7.35
	Top	1.03	1.67	1.21	2.01	0.91	1.53
#3	Left	11.77	12.53	8.43	9.12	11.44	12.17
	Top	1.29	2.12	0.94	1.70	1.19	1.99
#4	Left	9.51	10.09	6.74	7.12	7.21	7.61
	Top	1.28	2.08	0.77	1.35	0.91	1.50
#5	Left	8.87	9.42	8.48	9.02	11.77	12.28
	Top	1.07	1.86	1.36	2.15	1.25	2.02
#6	Left	6.87	7.30	9.83	10.00	7.09	7.52
	Top	0.87	1.33	1.37	1.97	0.93	1.39
#7	Left	10.88	11.48	8.49	9.09	11.03	11.62
	Top	0.99	1.69	1.09	1.76	1.13	1.80
#8	Left	10.57	11.21	8.31	9.01	10.93	11.49
	Top	0.96	1.67	1.08	1.75	1.10	1.77