Research on Maintenance Technology and Comprehensive Application of Track Pavement—Taking the Shanghai International Circuit as an Example

上海国际赛车场在长期使用后，出现了较多路面病害和不均匀沉积，影响了赛道的安全性和使用寿命。本文在介绍项目具体问题和一般处理工艺后，针对性地提出采用精铣刨、打磨、抛丸和高耐磨保护封层的组合，实现对赛道维修工艺的优化。采取该施工工艺后进行摩擦系数测试，结果表明维修区域的摩擦系数平均值符合轨道安全标准，摩擦性能已恢复，且该区域的平整度得到了提高，路面的使用寿命得以延长，为类似工程提供了技术指导。After the long-term use of Shanghai International Circuit, there are many road surface diseases and uneven deposits, which affect the safety and service life of the track. After introducing the specific problems of the project and the general treatment process, this paper puts forward the combination of fine milling, grinding, shot blasting and high wear protection layer to optimize the track maintenance process. The friction coefficient test results show that the average value of the friction coefficient in the maintenance area is in line with the track safety standard, the friction performance has been restored, the flatness of the area has been improved, and the service life of the road surface has been extended, which provides technical guidance for similar projects.