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Geoecological Aspects of 27 Tons Axle Load Innovative Cars Influence on the Railway Roadbed
This article presents the results of studies conducted in the cold region of Russia (Sverdlovsk Region, near Nizhny Tagil). Railway embankments operate in freezing and thawing conditions Therefore, the data obtained are of interest to the conference «Transoilcold2019». The purpose of the research is to conduct vibration diagnostics of the embankments under the influence of train load from cars with an axle load of 27 tons in comparison with cars with an axle load of 23.5 tons with a forecast of changing their condition by the stability criterion. Field measurements and analysis of vibration effects are applied. The determination of the vibration velocities of the oscillations indicates that in all experiments, the resulting amplitudes of the vibration velocities of the oscillations on the edge and the slope of the roadbed at a distance of 5–7 m from the edge at speeds of 30–70 km/h both for conventional trains and for innovative ones did not exceed 2.0 mm/s. Thus, in the experiments conducted in the period November–December 2017, there was no fixed change in the level of the oscillations at the level of the edge and the slope of high embankments in all experimental sections when the innovative rolling stock moved with cars having an axle load of 27 tons. The surveyed embankments when moving both ordinary trains and trains formed from cars with a load of 27 tons are classified as stable. Thus, when applying to experimental sections of innovative cars, there is no change in the state of high embankments by the stability criterion. All embankments are characterized as stable. The obtained results can be used to develop the norms for the device, operation, maintenance and diagnostics of the track infrastructure for the trains with an axle load of 27 tons. The article also contains the geoecological aspects.
Geoecological Aspects of 27 Tons Axle Load Innovative Cars Influence on the Railway Roadbed
This article presents the results of studies conducted in the cold region of Russia (Sverdlovsk Region, near Nizhny Tagil). Railway embankments operate in freezing and thawing conditions Therefore, the data obtained are of interest to the conference «Transoilcold2019». The purpose of the research is to conduct vibration diagnostics of the embankments under the influence of train load from cars with an axle load of 27 tons in comparison with cars with an axle load of 23.5 tons with a forecast of changing their condition by the stability criterion. Field measurements and analysis of vibration effects are applied. The determination of the vibration velocities of the oscillations indicates that in all experiments, the resulting amplitudes of the vibration velocities of the oscillations on the edge and the slope of the roadbed at a distance of 5–7 m from the edge at speeds of 30–70 km/h both for conventional trains and for innovative ones did not exceed 2.0 mm/s. Thus, in the experiments conducted in the period November–December 2017, there was no fixed change in the level of the oscillations at the level of the edge and the slope of high embankments in all experimental sections when the innovative rolling stock moved with cars having an axle load of 27 tons. The surveyed embankments when moving both ordinary trains and trains formed from cars with a load of 27 tons are classified as stable. Thus, when applying to experimental sections of innovative cars, there is no change in the state of high embankments by the stability criterion. All embankments are characterized as stable. The obtained results can be used to develop the norms for the device, operation, maintenance and diagnostics of the track infrastructure for the trains with an axle load of 27 tons. The article also contains the geoecological aspects.
Geoecological Aspects of 27 Tons Axle Load Innovative Cars Influence on the Railway Roadbed
Lecture Notes in Civil Engineering
Petriaev, Andrei (editor) / Konon, Anastasia (editor) / Kozlov, Ivan (author) / Ivanova, Ksenia (author) / Kozlov, Dmitry (author) / Govorov, Vadim (author) / Shekhtman, Evgenii (author)
2020-01-03
8 pages
Article/Chapter (Book)
Electronic Resource
English
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