Numerical Modeling of Seismic Responses and Seismic Measures of Tunnel Crossing a Fault Zone: A Case Study

Table 1

Test results of ground stress in Longxi Tunnel (updated from Xu et al. [31]).

Location of test point	Stress item	Maximum principal stress	Intermediate principal stress	Minimum principal stress
Left tunnel	Measurement value (MPa)	26.4	13.6	12.1
LK23 + 810∼815	Direction (°)	N36.8 E	N66.1 E	N48.8 W
	Dip angle (°)	21.8	−65.4	−10.9
Right tunnel	Measurement value (MPa)	25.1	16.8	9.4
	Direction (°)	N49.6 E	N63.8 W	N18.9 E
RK22 + 345	Dip angle (°)	58.7	13.6	−27.6