The Research Of Screen Cleaning Construction In Station Line Technology

Railway will be deformed, wear, dirt and aging during the operation process, especially the line of site lot, which is more easy to form a junction with Frothing of Track Bed because of the poor drainage of embankment affected by the fixed building on one end of the railway, therefore it must be maintained and repaired constantly. The distance between the Sleepers head of the line of site lot and platform buildings generally can not meet the operational requirements of the ballast cleaning instrument, which cause part line of site lot can not be mechanically cleared by sieve, thus making this part of the route become the weak link of the line for lacking effective conservation to long-term.To solve this problem, the principle of parallel line-moving is introduced and the sites allocated shift cleaning construction technology is also proposed, which means to parallel line-moving this part of the line to stay away from the platform side of the dial with cleaning machine and tamping machine before the operational cleaning, and then re-use the tamping machine to call back the line to the original size after pleaning screening operations, the technology of platform shift cleaning construction was repeatedly practiced in the repair of Beijing-Guangzhou line to test the feasibility of the technical. The control process is divided into the following three steps:(1) In the start of the project, introduce the parallel line-moving principle to theoretically calculated on platform allocated to move the reverse curve to determine the various elements of the curve and the trajectory equation, then form the theoretical data.(2) In the procession of the project, make dynamic tracking of the whole construction process, record the curve elements after the shift of the platform under different line conditions in a timely manner, and then compared them with the theoretical data.(3) In the end of the project, save the analysis results and establish the experience database to provide technical support to the follow-up projects or similar projects.