高速铁路无砟轨道整治效果评估方法探讨

摘要

Service status of track has a direct influence on the safety and stability of high-speed train operation. With the extensive use of ballastless track, the defect of ballastless track has become one of the main factors affecting the regularity and stability of track. Now there are many remedy measures for ballastless track, but the assessment of the effectiveness of remedy measures remains one of the difficulties in daily maintenance. In view of the major defects of ballastless track and the corresponding remedy measures, this paper introduces and compares the three assessment methods such as track dynamic testing, fiber sensing monitoring and geologic radar inspection, which provide references for the application of quantitative assessment method for ballastless track of high-speed railway.%轨道系统的服役状态直接影响高速列车的安全、平稳运行。随着无砟轨道结构的大量投入使用，无砟轨道病害成为影响线路平顺性和稳定性的主要因素之一。目前病害的整治措施有很多，但如何对整治效果进行有效的评估是日常维护工作的难点之一。结合目前我国高速铁路无砟轨道结构存在的几种主要病害和整治方法，对轨道动态检测、光纤传感监测和地质雷达无损检测3种整治评估方法进行介绍和对比，为整治评估方法在高速铁路无砟轨道上的推广应用提供参考。