City-rail steel spring floating slab rail bed railroad switch construction method

Abstract

The invention discloses a city train steel spring floating track construction method for resolving the vibration, noise problems of train in railroad switch, which lays city railroad on a steel spring floating plate without slag bed, to reduce the vibration and noise, comprising that filling base, testing and arranging base mark and vibration insulator center point, grinding and repairing the surface of the filled layer of the insulator, laying insulated film, laying railroad switch, positioning and mounting an outer muffle of the insulator, bonding a floating plate steel bar network and anti-drop steel bars, adjusting the railroad switch, mounting a force cutter and a support template, pumping concrete to irrigate the floating plate bed, detaching mould of the concrete and maintaining, lifting up the steel spring floating plate.

Description

technical field [0001] The invention relates to a construction method for a new urban railway track structure, in particular to a construction method for an urban railway steel spring floating slab track bed turnout, which belongs to the new field of railway construction. Background technique [0002] The urban railway turnout is the weakest link in the track system. The vibration and noise generated by the train passing through the turnout are much larger than those on the line. Although the vibration and noise produced by ballasted bed turnouts are smaller than those of ballastless bed turnouts, the geometric dimensions of ballasted bed turnouts are prone to change, and the maintenance costs are high. However, the vibration and noise of the train passing through the turnout are relatively large, which has become a major technical problem that needs to be solved urgently. At present, whether it is for ballasted or ballastless ballast beds, various v...

AI Technical Summary

Problems solved by technology

Although the vibration and noise produced by ballasted bed turnouts are smaller than those of ballastless bed turnouts, the geometric dimensions of ballasted bed turnouts are prone to change, and the maintenance costs are high. However, when the train passes through the turnout, the vibration and noise are relatively large, which has become a major technical problem that needs to be solved urgently

At present, whether it is for ballasted or ballastless bed, various vibration and noise reduction technologies are used to reduce vibration and noise for the line part, but there is no ideal for the vibration and noise reduction of turnouts. technical solutions

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