Studying Bump at Bridge Approach of Short Subgrade with Oblique Prestressed Concrete Overlaying Asphalt Layer

Table 3

Material parameters.

Structure	Thickness (d, cm)	Elasticity (E, MPa)	Poisson ratio (u)
Asphalt concrete	10	1200	0.25
OPC	24	31000	0.15
Cement-stabilized gravel	36	1800	0.2
Silty bed	700	40	0.35
Slope	700	40	0.35
Abutment	736	31000	0.15
Prestressed tendon	—	195000	0.3