Vibration Response Characteristics of the Cross Tunnel Structure

Table 5

Calibration with measured and calculated velocities at different studied positions (unit: mm/s) [33].

Studied positions		A	B	C	D
Positive peak values	Registered velocities	0.4065	0.4786	0.6049	0.6793
	Calculated velocities	0.4403	0.5074	0.6253	0.6970
	Error (%)	8.31	6.02	3.37	2.61
Negative peak values	Registered velocities	−0.3926	−0.4712	−0.6070	−0.6989
	Calculated velocities	−0.4320	−0.5043	−0.6286	−0.7127
	Error (%)	10.04	7.02	3.56	1.97