太中银线60kg-12号可动心轨单开道岔的养护与维修

道岔是轨道结构的重要组成部分,但由于道岔区线路刚度急剧变化、轨下基础弹性不均匀、岔区线路不平顺等引起更为复杂的荷载和变形及震动,使道岔成为轨道结构的薄弱环节之一。作为60 kg-12号可动心轨高速道岔,更是对工务的养护、维修、管理与技术提出了更高的要求。通过大量的现场实践经验,提出对高速60 kg-12号可动心轨道岔养护与维修等方面的见解。

Maintenance of the Single Turnout of the 60 kg-12 Movable Point Crossing of Tai-zhong-yin Railway

The turnout is one of the important parts of the rail structure, but at the turnout, the great change of stiffness, the uneven flexibility under the rails and unsmooth line may cause more complex load, deformation and vibration, which makes the turnout the weakest link in the rail structure. The high-speed turnout of the 60kg-12 movable point crossing demands higher levels of maintenance, management and technology. Based on lots of on-site practices, some measures to improve the maintenance are proposed.