Abstract：
Large-particle asphalt and crushed stone is resistant against wheel track and reflection, and it could better solve poor stability and durability of pavement at high temperature. At present, large-particle asphalt mixture is mainly used as substratum of asphalt pavement, but research and use of lower course are relatively less. After mechanical calculation of lower course made of large-particle asphalt and crushed stone, it is obtained that the reasonable thickness of lower course made of large-particle asphalt mixture should be 10 to 11cm.
