Reconstruction and Intelligent Evaluation of Three-Dimensional Texture of Stone Matrix Asphalt-13 Pavement for Skid Resistance

oleh: Gang Dai, Zhiwei Luo, Mingkai Chen, You Zhan, Changfa Ai

Format: Article
Diterbitkan: MDPI AG 2023-12-01

Deskripsi

To examine the three-dimensional texture structure of SMA-13 asphalt pavement and assess its anti-skid performance, a light gradient-boosting machine evaluation model was developed using non-contact three-dimensional laser-scanning technology. The study focused on collecting three-dimensional texture data from newly laid SMA-13 asphalt pavement. Subsequently, wavelet transform was employed to reconstruct the pavement’s three-dimensional texture, and discrete Fourier transform was utilized to separate macro- and microtextures, enabling the calculation of their characteristics. The macro- and micro-characteristics of the three-dimensional texture and friction coefficient were input into the model. A comparative analysis with linear regression and a random forest model revealed superior accuracy and efficiency in the model. The training set <i>R</i><sup>2</sup> is 0.948, and the testing set <i>R</i><sup>2</sup> is 0.842, effectively enabling the evaluation of pavement anti-skid performance. An analysis of parameter importance indicated that <i>R<sub>ku</sub></i> and <i>MPD</i> are still effective indicators for evaluating skid resistance. Furthermore, diverse texture indexes exhibited varying effects on the anti-skid performance. The established asphalt pavement anti-skid evaluation model serves as a theoretical foundation for understanding the actual influence on pavement anti-skid performance.