路基不均匀变形对路面影响的研究

Research on sub-grade inhomogeneous deformation to pavement

研究了公路路基出现不均匀变形的机理，并通过建立3D有限元模型，分析了路基不均匀变形对面层结构的影响程度，研究结果表明，路基出现不均匀变形后，面层结构内的荷载应力会显著增长，且影响程度会随着基础强度的增长而增长，增长幅度在20％～50％。

This paper researched the inhomogeneous deformation mechanism of highway sub-grade, and through the establishment of 3D finite ele- ment model, analyzed the influence degree of sub-grade inhomogeneous deformation to surface layer structure, the results showed that, after the sub-grade inhomogeneous deformation, the load stress of surface layer structure wolud increase significantly, and the influence degree would in- crease with the underlying strength, the growth rate in 20%- 50%.