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路面路基结构的沉降变形主要来自地基路堤土层的固结压密沉降和交通荷载反复作用下路面路基各结构层的累积残余变形。文章论述了路面路基结构在车辆荷载作用下的动力特性试验研究,通过比较水的浸入和压实密度降低两种因数对路面路基结构应力和变形特性的影响程度可发现,水的浸入对路面路基结构应力和变形的影响要大于压实密度降低对路面路基结构的影响。水的浸入和碾压质量不高是造成路面早期破坏的因数之一。
Subsidence and deformation of pavement subgrade mainly come from the consolidation residual stress of subgrade consolidation embankment and the cumulative residual deformation of pavement subgrade under the repeated action of traffic load. In this paper, the dynamic characteristics of pavement subgrade under vehicle load are discussed. By comparing the influence of two factors on the stress and deformation characteristics of pavement subgrade, it is found that the influence of water infiltration on pavement subgrade The effect of structural stress and deformation is greater than the effect of reduction of compaction density on pavement subgrade structure. Water immersion and rolling quality is not high is one of the factors causing the early destruction of the road.