Research on Mechanical Response of Pavement Structure to Differential Settlement of Subgrade on Highway Widening

Table 6

Calculation results of maximum tensile stress of structural layer of the old pavement under different differential settlements (MPa).

Pavement structural layer	Maximum differential settlement (mm)
	20	40	60	70	80
Reinforcing layer of road	0.198	0.461	0.678	0.814	0.932
SMA-13	0.162	0.407	0.622	0.720	0.821
AK-16	0.145	0.344	0.567	0.655	0.748
AC-20	0.130	0.302	0.493	0.566	0.661
AC-30	0.115	0.269	0.418	0.497	0.577
Lime-flyash-stabilized base	0.102	0.256	0.394	0.471	0.532