针对传统半刚性路面基层刚度过大、容易诱发各种早期破坏的问题,采取了柔化半刚性基层的方法,即合理地降低基层的模量。一方面,这样并不会降低路面的结构承载力;另一方面,基层模量与沥青混凝土面层模量的合理匹配,使面层内的剪应力和层底拉应力均控制在较低的应力水平,避免了早期损坏的发生。同时,结合国道主干线渝湛高速公路高桥~遂溪公路的建设,系统地提出了低剂量水泥稳定碎石的施工方法和控制指标,对于国内类似工程具有指导意义,同时也为道路设计理论的发展提供有益的借鉴。 Aiming at the problem that the rigidity of the traditional semi-rigid pavement is too large, it is easy to induce all kinds of early damage. The method of softening the semi-rigid base is adopted to reduce the modulus of the base. On the one hand, this will not reduce the bearing capacity of the pavement; on the other hand, the reasonable match of the base modulus and asphalt concrete surface layer modulus, the shear stress in the surface layer and the tensile stress in the bottom layer are controlled at lower Stress level, to avoid the occurrence of early damage. In the meantime, combined with the construction of Tamachiao-Suixi Highway on Yuzhan Expressway, the construction methods and control indexes of low-dose cement stabilized macadam are systematically proposed, which are of guiding significance for similar projects in China and also for road design theory Provide a useful reference for the development of.