Process for high speed railway ballastless track construction

Abstract

The invention relates to a process for high speed railway ballastless track construction. The process comprises the steps of preparing for construction; surveying and setting out; paving ballast bed bottom layer rebars; mounting longitudinal templates; assembling sub-sleepers and sections of a track; mounting and coarsely regulating the sections of the track; paving and binding top layer rebars; finely regulating the sections of the track; pouring concrete; vibrating, plastering and moulding; maintaining a ballast bed; detaching and transferring machines and tools. The problem of difficulty in optimizing a high speed railway ballastless track construction technique is solved, the construction efficiency is improved, the ballastless track construction period is shortened, and the construction quality is guaranteed; the process for high speed railway ballastless track construction has the characteristics of high construction efficiency and high degree of mechanization, and the efficient and orderly construction of the high speed railway ballastless track is ensured.

Description

technical field [0001] The invention belongs to the field of railway building construction, and in particular relates to a technology for ballastless track construction of high-speed railways. Background technique [0002] In order to meet the requirements of high-speed railways for track structure, the structural form of ballastless track has been widely used abroad. Drawing on foreign advanced technology, our country is gradually using ballastless track technology in the construction of railway network. [0003] There are three types of ballastless track in China: elastic support block type, track slab type and embedded bolster type. At present, due to the small number of laying and scattered work sites, each construction enterprise can only formulate a suitable process method for this project according to the type of ballastless track it undertakes. The construction methods generally use manual or semi-mechanized operations. Therefore, there are defects in complex opera...

AI Technical Summary

Problems solved by technology

Therefore, there are defects such as complicated process operation and slow progress, which are far from meeting the needs of high-speed railway construction.

[0004] The relatively mature technology of ballastless track imported from abroad is radar 2000 double-block sleeper technology. For example, the completed Wuhan-Guangzhou Passenger Dedicated Line adopts this technology. Its construction equipment includes loose sleeper devices, dump trucks, longitudinal formwork installation machines, Horizontal and vertical formwork demolition machines, transverse formwork and vertical and horizontal formwork, screw adjusters, tool rails, rough adjustment machines and concrete pouring machines, etc., have the disadvantages of complex construction technology and expensive equipment as a whole

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