Research on the Reconstruction Scheme of Ballastless Track Connection at Liujiaping Station of Chongqing Metro Line 6
Urban planning is constantly adjusted and improved with the development of the city.Therefore,the extension line scheme of existing urban rail transit may have been adjusted compared to early network planning,which will cause the extension line to be connected to a station with no reserved interface.This paper takes the extension line of Chongqing Metro Line 6 East Station as an example to study the transformation scheme of ballastless track connecting to Liujiaping elevated station.The reconstruction scheme should not only meet the requirements of ballastless track laying,but also be safe and reliable,minimize the interrupted operation time,and facilitate the later maintenance.Therefore,this paper puts forward four reconstruction schemes for ballastless track including synthetic resin sleepers pouring the track bed first,long sleepers pouring the track bed later,short sleepers pouring the track bed first,and prefabricated track bed slabs,and analyzes the characteristics of different schemes,which can provide reference for the transformation of ballastless track connection of other lines.
urban rail transitextension linereconstruction of existing linesballastless trackscheme comparison
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