Study on the Stability of Surrounding Rock of Underground Circular Cavern Based on the Anchor Reinforcement Effect

Table 4

Comparison of results.

	Anchor length (m)	Anchor spacing (m)	The displacement of the tunnel wall (mm)			The axial force of the anchor (kN)			k
			Theoretical value	Numerical solution	Monitoring value	Theoretical value	Numerical solution	Monitoring value
Scheme 1	2.4	1.0 × 1.0	47.40	44.61	43.78	100.54	107.21	97.32	0.216
Scheme 2	2.4	1.2 × 1.2	47.36	44.52	43.14	190.48	192.14	186.23	0.218