Laying construction method and device for double-block type ballastless track sleeper

Abstract

The invention discloses a high-speed railway double-block ballastless rail sleeper laying construction method and devices, which comprises: a concrete loading layer is laid on a roadbed layer, formwork rails are symmetrically fixed on both sides of the concrete loading layer, support legs are arranged outside the formwork rail, rail bed concrete is cast between two formworks for evenness; a beam is put on a pair of support legs to be constructed, a fixing frame to be combined with the sleeper is put on two adjacent beams, simultaneously the sleeper is imbedded into rail bed concrete for consolidating into one part through vibration mode, and so on for the next sleeper laying; the fixing frame is separated from the sleeper and the fixing frame, and the beams are offered to the constructionequipment for recycle use after the sleeper and rail bed concrete are initially solidified; after the concrete is totally consolidated, the rail formworks, support legs are dissembled and recycled for use. The method of the invention satisfies the ballastless rail construction accuracy requirement and mechanic recycling operation mode, and greatly improves the sleeper laying efficiency and quality.

Description

technical field [0001] The invention belongs to the field of railway construction technology and mechanical equipment technology, and mainly proposes a construction method and equipment for laying double-block ballastless track sleepers for high-speed railways. Background technique [0002] In railway construction, for more than 100 years, the railway system has been using ballasted tracks, that is, ballast, sleepers and steel rails are used to lay railway tracks. As the running speed of railway vehicles continues to increase, the ballast pulverization and accumulative deformation of ballast tracks based on gravel track beds and sleepers will accelerate, resulting in increased track maintenance workload and faster maintenance frequency; and Under the condition of high-speed operation of railway vehicles, the difficulty of maintenance work tends to increase for ballasted tracks to maintain high-quality and high-smooth track conditions. The emergence of ballastless track has ...

AI Technical Summary

Problems solved by technology

Compared with ballasted track, although the construction technology is more complicated and the one-time investment is larger than that of ballasted track, it has a long service life and is basically maintenance-free during the service life, and the maintenance workload during operation can be reduced by more than 70%. It can effectively alleviate the contradiction between high-speed railway operation and maintenance, and the total cost is not higher than that of ballasted track

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