Research on Soft Rocks for the Construction of Roadbeds for High-Speed Railroad: Effect of Water Soaking Environment

Table 4

Material parameters corresponding to the subgrade model.

Name	Thickness (m)	Bulk density (kN·m^−3)	Elastic modulus (MPa)	Poisson’s ratio	Cohesion (kPa)	Angle of internal friction (°)
C35 concrete	0.5	24.20	2.8 × 104	0.2	—	—
C25 concrete	1.17	24.00	3.15 × 104	0.2	—	—
Graded gravel	0.58	18.00	500	0.35	—	—
Group AB soil	0.45	20.60	160	0.34	30	25
Group ABC soil	10	19.80	100	0.35	35	30
Group AB soil mixed with 8% cement	3.3	21.40	300	0.32	32	26.5
Fully weathered muddy sandstone	10	18.80	42.06	0.3	208.39	26.87
Muddy sandstone	20	21.50	1.05 × 104	0.25	8960	39.5