Replacement Track-laying Construction Technology of"Placing Four Rails into Rail Seat at One Time"for Long Railway Bridge with Ballasted Track
After the tool rails of railway line are laid,it is necessary to carry out CWR replacement track-laying construction.In the traditional construction method,the replaced old rails are disassembled,manually shifted into the rail seat and fastened to form line guard rails.This method has disadvantages such as a large number of operation personnel,low efficiency and high cost.Through the study on the structure and operation mode of Type Ⅲ replacement track-laying vehicle,this paper optimizes the traditional guard rail laying process and proposes the construction technology of"placing four rails into rail seat at one time"for long railway bridge with ballasted track.This paper introduces the replacement track-laying construction process of"placing four rails into rail seat at one time",and describes the key operation points of the process flow.This technology can realize the synchronous replacement track-laying and placement of guard rails and stock rails into the rail seat,greatly improving the operation efficiency and reducing the construction cost,and laying a solid foundation for subsequent construction.
long bridgestock railguard railreplacement track-layinglong rail stringsynchronous placement into rail seat
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