客运专线桥梁道床板烂根、麻面等质量通病的预防

Prevention of the Common Quality Defects of Passenger Dedicated Line Bridge Track Plate

在新建时速250~350公里的高速铁路中,主要以无砟轨道结构型式为主。无砟轨道是以混凝土等整体结构为轨下基础的轨道结构,一般都由多层结构构成,轨道直接承受来自车辆的荷载,并将荷载传递到下部结构,是一个庞大的系统工程。本文对无砟轨道施工过程中桥梁道床板烂根、麻面等质量通病的预防进行介绍,给类似工程施工提供了参考依据。

In the new,high speed railway with speed of 250？350km / h , the main structure is mainly ballastless track type . Ballastless track is based on the overall structure such as concrete, generally composed of multi-layer structure . The track directly bear the load from the vehicle , and transfer the load to the lower structure , so it is a huge system engineering . In this paper, the prevention measures of the common quality defects including rotten roots and surface voids of bridge track plate during the construction of ballastless track, to provide reference for similar construction .