Complex environment simulation test system for ballastless track of high-speed railway

Abstract

The invention discloses a complex environment simulation test system for a ballastless track of high-speed railway. The system comprises a test platform library body, a large-scale walk-in type temperature and humidity control system, a plate type ballastless track structure, a movable prototype fatigue test loading machine system, a sensor monitoring and detection system and an auxiliary settingand equipment support system. The system can be used for simulating real complex climate environment conditions and analyzing the influence of external factors such as complex temperature circulation,rainwater, freeze thawing, train loads and the like on the ballastless track structure and a lower foundation of the high-speed railway, a track structure service state and the like, and can also beapplied to relevant experiments and tests of various structures, components and equipment in other fields such as bridges, roadbeds, road surfaces, materials and the like, the application range is wide, and economic and social benefits are good.

Description

technical field [0001] The invention relates to the technical field of railway maintenance, in particular to a complex environment simulation test system for ballastless tracks of high-speed railways. Background technique [0002] With the rapid development of the traffic and transportation industry, my country's high-speed railway technology has developed rapidly, and high-speed railways are mainly based on ballastless tracks with better stability, reliability and ride comfort. [0003] As of the end of 2017, my country's high-speed rail mileage has exceeded 22,000 kilometers, ranking first in the world. The rapid development of my country's high-speed rail, large scale, outstanding achievements, and extensive benefits have attracted worldwide attention. High-speed rail has become a bright business card for China to go to the world and stand in the center of the world stage. [0004] With the increase of the operating mileage of high-speed railway ballastless track lines, ...

AI Technical Summary

Problems solved by technology

[0007] At present, the comprehensive test or detection of high-speed railway ballastless track, whether it is an indoor platform or an outdoor test line, is mainly related to the strength and dynamic performance of track structural components, and lacks the consideration of complex climatic conditions, such as high and low temperature cycles, extreme high temperature, etc. Real considerations such as low temperature, continuous high temperature, high temperature falling rain, and surface icing at low temperature, as well as the influence of complex temperature environment and train load coupling on the track structure, are difficult to meet the national conditions of my country's vast territory and large climate differences in high-speed rail operating conditions

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