Fig 1.
Pavement structure of Yao Luan Xi Expressway highway.
(a) Origrin pavement structure with CTB–30 base (b) Design pavement structure with CTB–50 base.
Fig 2.
Pavement structure of G234 second–class highway.
(a) Origrin pavement structure with CTB–30 base (b) Design pavement structure with CTB–50 base.
Fig 3.
Mechanical calculation model of Expressway highway.
(a) Origrin pavement structure with CTB–30 base (b) Design pavement structure with CTB–50 base.
Fig 4.
Mechanical calculation model of second–class highway.
(a) Origrin pavement structure with CTB–30 base (b) Design pavement structure with CTB–50 base.
Fig 5.
Mechanical responses calculation points.
Table 1.
Mechanical responses calculation results of different points.
Fig 6.
Variation of mechanical responses with depth of different calculation points.
(a) Variation of asphalt surface shear stress with depth (b) Variation of semi–rigid base tensile stress with depth.
Table 2.
Mechanical responses of different base thickness.
Table 3.
Mechanical responses of different base modulus.
Table 4.
Base layer bottom tensile stress under different asphalt pavement structure.
Table 5.
Base layer bottom tensile stress under different base thickness of express highway.
Fig 7.
Variation of base layer bottom tensile stress with different base thickness of express highway.
Table 6.
Base layer bottom tensile stress under different base thickness of second–class highway.
Fig 8.
Variation of base layer bottom tensile stress with different base thickness of second–class highway.
Table 7.
Stress level of expressway and first–class highway asphalt pavement.
Fig 9.
Variation of stress levels with different base thickness of express highway.
Table 8.
Stress level of second–class highway asphalt pavement.
Fig 10.
Variation of stress levels with different base thickness of second–class highway.
Table 9.
Fatigue life of expressway and first–class highway asphalt pavement.
Fig 11.
Variation of fatigue life with different base thickness of express highway.
Table 10.
Fatigue life of second–class highway asphalt pavement.
Fig 12.
Variation of fatigue life with different base thickness of second highway.
Fig 13.
Recommended pavement structure of expressway highway.
(a) Origrin pavement structure with CTB–30 base (b) Recommend pavement structure with CTB–50 base.
Fig 14.
Pavement structure based on the principle of equivalent fatigue life of second–class highway.
(a) Origrin pavement structure with CTB–30 base (b) Recommend pavement structure with CTB–50 base.
Fig 15.
Mechanical calculation model of second–class highway pavement structure.
Table 11.
Mechanical calculation results of asphalt pavement with different thicknesses of cement-stabilized soil.
Fig 16.
Variation of fatigue life with different cement-stabilized soil thicknesses of second highway.
Fig 17.
Recommended pavement structure of second–class highway.
(a) Origrin pavement structure with CTB–30 base (b) Recommend pavement structure with CTB–50 base.