Research on Subgrade Differential Settlement Control Standard and Treatment Technology Based on Driving Comfort

Table 2

Pavement structure and material parameters.

Horizon	Thickness (m)	Material	Elastic modulus (MPa)	μ	γ (KN/m^3)
Upper layer	0.04	Superpave-13	1400	0.35	24.2
Mid-surface	0.06	Superpave-20	1300	0.3	24.2
Binder course	0.08	ATB-25	1000	0.3	24.1
Base	0.35	CTB	1500	0.25	23.5
Subbase	0.2	CTB	1500	0.25	23.5
Cushion	0.2	SG	500	0.35	23.6