Research on Dynamic Response of Shallow Buried Tunnel Lining Constructed by Drilling and Blasting Method

Table 5

Comparison of simulated and measured values of peak particle velocity (without in situ stress).

Point	R/m	X velocity (cm/s)		Error /%	Y velocity (cm/s)		Error /%	Z velocity (cm/s)		Error /%	Resultant velocity (cm/s)		Error /%
		M	S		M	S		M	S		M	S
1#	15	19.75	15.90	24.19	22.54	18.32	23.01	8.59	7.36	16.76	26.18	22.35	17.09
2#	20	15.90	13.67	18.96	24.61	20.15	22.14	7.35	5.92	24.18	29.31	23.90	22.66
3#	25	8.16	6.39	27.58	7.06	6.14	14.87	8.24	6.58	25.19	10.24	9.01	13.65
4#	30	9.58	7.62	25.82	14.44	12.31	17.27	10.60	8.06	29.04	18.31	16.40	11.67
5#	35	13.12	10.74	22.25	16.76	13.80	21.49	11.77	9.68	21.58	23.33	19.47	19.82

Note: R is the distance from the measurement point to the tunnel surface, M is the measured value, and S is the simulation value.