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在研究重载作用下的路表回弹弯沉时,主要从两个方面入手:一是超重载情况下考虑非线性因素和未考虑非线性因素时路表弯沉的比较;二是不考虑非线性因素时超载车辆和非超载车辆对路表所产生弯沉的比较。不论何种路面结构,随着轴重的增加路面回弹弯沉也随之呈幂函数形式而增加,且随着轴重的增加,弯沉变化幅度也随之加大。路表弯沉的变化与路面结构组成有密切关系,路面结构强度愈弱,轴载对弯沉的影响愈大,非线性性质表现的也越显著。
In the study of road surface under heavy load rebound deflection, mainly from two aspects: First, under the conditions of overloading under the consideration of non-linear factors and non-linear factors when comparing road deflection; second is not Comparison of deflection caused by overloaded vehicles and non-overloaded vehicles on road tables considering nonlinear factors. No matter what kind of pavement structure, with the increase of axle load, the pavement rebound deflection also increases in the form of power function, and with the increase of axle load, the deflection range also increases. The deflection of road surface is closely related to the composition of pavement structure. The weaker the strength of pavement structure is, the greater the influence of axle load on deflection is, and the more significant the nonlinear property is.