如何降低有砟高铁轨道质量指数TQI值

How to Reduce the TQI Value of the High-speed Railway Track Quality Index

有砟道床属于弹性道床,轨道几何尺寸维持能力较弱,容易造成轨道不平顺,主要表现为TQI值居高不下、长波高低层出不穷等病害,直接影响旅客的舒适度。本文以银兰客专(吴中段)轨道工程作为研究对象,重点对有砟高铁轨道精测、人工精改、机械精捣进行总结,以便指导后期有砟高铁精调施工。

The ballasted bed belongs to the elastic ballast bed.The track geometry has a weak ability to maintain the track size,which easily causes track irregularities.The main manifestations are the high TQI value and the long wave of high and low levels,which directly affect the passenger comfort.In this paper,the Yinlan passenger train(Wuzhong section)track project is taken as the research object,and the key points are to summarize the precision measurement,manual modification,and mechanical ramming of the high-speed railway track in order to guide the later stage fine-tuning construction.