Runway switch laying method for ballast track passenger special line

Abstract

The invention relates to an in-situ laying method for the turnouts of ballast track dedicated passenger lines, which is characterized in that: a plurality of temporary track panels are laid at the original positions of the turnouts for transitive purposes, and a piece of large mechanical road maintenance equipment is adopted to tamp the track panels to stabilize the ballast bed; then the temporary track panels are removed, a turnout assembling platform is arranged at the original position of the turnout, and the overall assembly and fine adjustment of the turnout are carried out on the turnout assembling platform. Then a piece of synergic hydraulic equipment is used to jack up the assembled turnout as a whole, the operations of charging ballast and tamping are performed after removing the turnout assembling platform, and the turnout should be repaired and maintained regularly while in service. The invention has the advantages of tremendously improving the adjusting precision of the turnout, effectively preventing the turnout from deforming, enabling the positioning of the turnout to be more accurate, and maintaining the integrity of the turnout.

Description

technical field [0001] The invention relates to an auxiliary method for laying train tracks, more specifically a method for laying turnouts on ballasted track passenger dedicated lines Background technique [0002] With the needs of railway development, turnouts, as an important part of railways, are developing faster and faster. In order to be suitable for high-speed train operation, in addition to the design and manufacturing accuracy requirements of turnouts, the laying accuracy of turnouts must also be improved. Since the turnout itself is a very fine construction component, it is easy to deform if the construction method is improper. [0003] In the prior art, for lines whose speed is designed to be below 200km / h, the turnouts are laid ahead of the track laying construction, and the engineering trains pass directly after the turnouts are constructed. Because the compactness of the newly laid turnout bed is not enough and the geometric dimensions of the turnouts do not m...

AI Technical Summary

Problems solved by technology

Since the turnout itself is a very fine construction component, if the construction method is improper, it is easy to deform

[0003] In the prior art, for lines whose speed is designed to be below 200km / h, the turnouts are laid ahead of the track laying construction, and the engineering trains pass directly after the turnouts are constructed. Because the compactness of the newly laid turnout bed is not enough and the geometric dimensions of the turnouts do not meet the standard, The construction vehicle was not repaired in time after passing through, resulting in memory damage of the turnout, seriously affecting the use of the turnout, and bringing great trouble to future operation and maintenance

[0004] So far, the laying of ballast track passenger dedicated line turnouts with a design straight-through speed of 250km / h has not been constructed in China, and the construction accuracy requirements are higher than those of turnouts with a designed speed of 200km / h or less. The laying accuracy of the turnout cannot be achieved at all during the construction of the turnout, so that the laying quality of the turnout cannot achieve the expected use effect

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