Experimental device for circular track wheel-rail force and base disease under the influence of multiple physical factors

Abstract

The invention relates to a device for testing wheel-rail stress of circular tracks and diseases of bases under the effects of multiple physical factors. The temperatures, the humidity and wheel load pressures can be automatically controlled by the device, and the wheel-rail stress and deformation conditions can be monitored by the device in real time. The device comprises a transparent environmental box outer cover, temperature control systems, humidity control systems, a wheel load control system, annular track plate rings, annular steel rail runways and basic layer structures. The device hasthe advantages that the temperatures, the humidity, steel wheel pressures and the speeds can be optionally selectively matched with one another in the measurement ranges, experimental tests can be carried out on the stress performance, disease evolution and the like of ballastless track plates, stress environments can be simulated within the controllable ranges, and base deformation, wheel-rail mechanics relations, disease development and data laws can be intuitively observed.

Description

Technical field [0001] The invention relates to a wheel-rail and base-level indoor intelligent monitoring test technology, in particular to a test device for simulating the force condition and durability monitoring of the ring-shaped track wheel-rail and the base under the action of multiple physical factors. Background technique [0002] my country’s high-speed railways are developing vigorously to the world. After the large-scale construction of civil engineering, as the service life of the existing high-speed railways increases, its aging diseases and maintenance methods have become the next key to solve problems. The relationship between the existing railway wheel and rail, track, track The disease evolution, deformation and corresponding mechanism of the board and substrate need to be further studied. At present, the research on the relationship between railway track wheel and rail and railway-related diseases mostly adopts modeling simulation simulation, field data collectio...

AI Technical Summary

Problems solved by technology

Among them, although the modeling and simulation simulation can simulate the test conditions for an unlimited number of times and in an unlimited range of sites, it still needs to be corrected for the results of the on-site test; although the on-site data collection of the test road section can collect the most authentic and original data on the spot, it cannot In the process, a large number of large-scale equipment are required to be in place, and at the same time, it consumes a lot of manpower, financial resources, and time; short-distance indoor simulation and other methods use the test car to turn back and forth on a limited number of boards, in terms of flexibility and continuous It is limited in performance and cannot give scientific and reasonable judgment and analysis under the set environmental conditions. The test results are also closely related to the skill level and meticulousness of the construction personnel.

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