Ballastless track settlement monitoring device

Abstract

The invention discloses a ballastless track settlement monitoring device. The ballastless track settlement monitoring device comprises guide rails, a fixing plate fixedly mounted at the front ends of the guide rails, a main plate fixedly mounted in the middles of the guide rails, and a mirror bracket movably mounted at the back ends of the guide rails and being capable of sliding along the axes of the guide rails, wherein a photodetector is arranged on the fixing plate; a laser, a light splitter and a first reflector are arranged on the main plate; a second reflector is arranged on the mirror bracket; the laser, the light splitter, the first reflector, the second reflector and the photodetector form a michelson interferometer; the mirror bracket is connected with a flanged settlement plate through a connecting post. The ballastless track settlement monitoring device measures settlement of a ballastless track in real time through the michelson interferometer, can measure micro-sized or even nano-sized settlement distance, and achieves the purposes of accurately perceiving settlement and monitoring the settlement amount.

Description

technical field [0001] The invention belongs to the technical field of settlement detection of ballastless track of high-speed railway, and in particular relates to a settlement monitoring device of ballastless track. Background technique [0002] With the development of China's railway technology, my country's railway traffic has gradually entered the era of high-speed rail. It is estimated that by 2020, through the construction of high-speed railways and passenger dedicated lines, the development of intercity passenger rail transit and the speed-up reconstruction of existing lines, China Railway will initially form a rapid passenger transport network with high-speed railways and passenger dedicated lines as the backbone, connecting major large and medium-sized cities across the country. [0003] Due to its high speed, high-speed railways require high ride comfort and high stability for the track structure. The traditional ballast track is not conducive to the improvement ...

AI Technical Summary

Problems solved by technology

On the other hand, precisely because of the high rigidity of the ballastless track slab, once the uneven settlement of the subgrade occurs, it will directly affect the operation safety of the high-speed railway

Although high-speed railways require corresponding treatment of foundation settlement, uneven settlement of structures below the line may still occur after the ballastless track is laid

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