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利用分形几何插值方法对微观纹理和宏观纹理的4种组合路表构造进行了较为精确的模拟,并建立了路表纹理分维值与摩阻系数的定量关系。结果表明:路表纹理具有明显的分形特征,利用分形插值函数可以对路表纹理进行较为精确的描述;路表纹理越粗糙其分维值越大且二者线性关系显著,利用该关系可对不同路表纹理的抗滑性进行预测。
Fractal geometry interpolation method is used to simulate the construction of four kinds of composite road surface with micro texture and macro texture. The quantitative relationship between the fractal dimension of road surface texture and the friction coefficient is also established. The results show that the road surface texture has obvious fractal characteristics, and the fractal interpolation function can describe the road surface texture more accurately. The more rough the road surface texture is, the larger its fractal dimension value is and the linear relationship between the two is significant. Skid resistance of different road surface texture is predicted.