沥青路面结构类型和沥青面层厚度对车辙的影响

半刚性基层道路上的车辙通常只发生在沥青面层,在一定厚度范围内,车辙深度会随着沥青面层厚度的增加而增大,但超过这一范围则不会再有大的影响。无机结合料半刚性基层达到预期强度后,在普通交通条件下车辙变形很少,但却加剧了沥青混合料面层车辙的发生。采用柔性基层时,建议将其厚度加大。

Effect of Asphalt Pavement Structure Type and Asphalt Surface Thickness on Rutting

The ruts in semi-rigid base roads usually occurs only in the asphalt surface,its depth would inc-rease with the increases of the thickness in a certain thickness range,but would not be affected over the range.After the inorganic binder semi-rigid base reaching the expected strength,it has little rutting deformation under the normal traffic conditions,but the occurrence of cutting in asphalt mixture surface is aggravated.This paper suggests increasing its thickness when using the flexible base.