Dynamic Responses of Soils around a One-Hole Double-Track Tunnel with the Metro Train Meeting

Table 1

Parameters of soil layers and the tunnel.

Soil layers	Layer thickness (m)	Deformation modulus (MPa)	Saturated unit weight (kN/m^3)	Friction angle φ (°)	Cohesive force c (kPa)	Void ratio	Poisson ratio
①-1 rock filling	0.3	2.34	16.5	4.7	15	1.529	0.3
②-1 clay	2.7	3.22	18	3.3	18	1.135	0.3
②-2 muddy clay	1.5	3.5	18	4.6	11	1.106	0.3
③-1 silty-fine sand	14.7	17.24	19.6	33	6	0.667	0.3
③-2 silty-fine sand	12.8	16.12	19.6	31.8	6	0.674	0.3
③-3 silty-fine sand	16.2	17.1	19.6	32.6	6	0.693	0.3
③-4 gravelly sand	7	25.3	20.8	38	2	0.58	0.3
④-1 moderately weathered mudstone	4.8	870	23.8	43.93	0.35	—	0.2
Tunnel segment	0.5	30000	26	60	29.6	—	0.05
Box culvert	—	28000	26	60	29.6	—	0.05