根据水泥混凝土路面比沥青路面对路基稳定更敏感的特性,要求高等级公路水泥混凝土路面的路基填筑提高一级压实标准。对于粒径在壤土以下的粒料土、沙土等采用重型压路机强行击实;对于塑性能指数较高的粘性土,使用路床石灰改善土稳定技术。 According to cement concrete pavement more sensitive to subgrade stability than asphalt pavement, it is required to improve the first-grade compaction standard for subgrade filling of cement concrete pavement of high-grade highway. For the particle size below the loam in the soil, sand and other compulsory compaction with a compactor; compaction clay with higher plastic index, the use of road bed lime to improve soil stabilization techniques.