Based on the construction of ballastless track in the Taichong section of the newly-built Taixi Railway tunnel,this paper elaborates on the application of the track panel frame method under the condition of ballastless track in a single track long tunnel.Compared to the tool track method,the track panel frame method solves the problem of limited working space and high precision requirements in the construction of single track long tunnels,as well as the problems of weak overall stiffness and low construction efficiency due to complex tool rail operations,tedious processes and repeated assembly.On site,the construction organization plan for ballastless track was optimized,construction resources were allocated reasonably,construction organization was strengthened,and multiple construction work surfaces in auxiliary tunnels were used to work simultaneously 24 hours a day.The construction tasks were successfully completed according to the schedule milestones.The construction results show that using the track panel frame method for the ballastless track of a single track long tunnel can improve construction efficiency,ensure construction quality,and save costs.The study provides reference for the design and construction of ballastless railways in the future.
维普
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