Response Analysis of a Ballasted Rail Track Constructed on Soft Soil by 3D Modeling

Table 1

Material properties for the different layers of embankment and subsoil.

Material model	Unit	Ballast	Subballast	Prepared subgrade	Embankment fill	Layer 1	Layer 2	Layer 3	Layer 4
		HS small	HS small	HS small	HS small	HS small	HS small	HS small	HS small
Drainage type		Drained	Drained	Drained	Drained	Drained	Drained	Drained	Drained
ɣ unsat	kN/m^3	16	20	20	19.7	15	17	17	18
ɣ sat	kN/m^3	18	23	21.8	21.8	17	19	19	20
e init		0.74	0.52	0.52	0.52	0.66	0.77	0.66	0.66
c ^′ref	kPa	0	0	0	0	25	48	0	0
φ′	Deg	50	55	60	38	30.7	28.9	38.7	40.7
G 0ref	kN/m^2	50000	130300	130300	90000	70000	33300	112500	112500
		0.2	0.2	0.2	0.3	0.15	0.2	0.2	0.2