Numerical Analysis of the Influence of Foundation Pit Blasting on a Nearby Metro Tunnel

Table 4

Maximum displacement and stress of linings for different conditions.

Condition	Velocity (cm/s)	Vertical displacement (10^−4 m)		Horizontal displacement (10^−4 m)		Z-direction stress (MPa)		X-direction stress (MPa)
		Top	Bottom	Left	Right	Top	Bottom	Left	Right
Static load	0	−50.03	−27.5	−9.253	9.239	−3.927	−3.927	−3.669	−2.568
1st condition	5	5.675	5.924	0.9	1.153	−3.942	−3.941	−3.685	−2.575
2nd condition	10	11.35	11.821	1.70	2.275	−3.945	−3.944	−3.686	−2.577
3rd condition	15	17.1	17.855	2.60	3.429	−3.950	−3.949	−3.692	−2.579
4th condition	20	22.7	23.719	3.395	4.554	−3.950	−3.949	−3.692	−2.579