Study on Structural Service Performance of Heavy-Haul Railway Tunnel with Voided Base

Table 2

Physical mechanics properties of model.

Material type	Density (kg/m^3)	Elastic modulus (GPa)	Poisson’s ratio	Friction Angle (°)	Cohesive force (MPa)
Subgrade	2500	6	0.3	39	1
Base slab	2500	3.6	0.3	36	0.85
Primary support	2500	25.5	0.2	58.7	1.3
Secondary lining	2500	28	0.2	60	1.6
Red-bed soft rock	2150	3.6	0.3	33	0.45