Dominant frequencies of train-induced vibrations in a seasonally frozen region

Wang, Ziyu; Xue, Ling; Zhu, Zhanyuan; Zhang, Feng

doi:10.1016/j.coldregions.2015.04.006

Cited by 11 publications

(6 citation statements)

References 20 publications

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“…Further, the non-frozen period vertical acceleration shows fast attenuation, and the freezing period has a significant impact on vertical acceleration. Moreover, the acceleration amplification effect due to frozen soil is evident [25]. This may be due to the migration of moisture in the lower part of the subgrade.…”

Section: Attenuation Law Of Vibration Response Acceleration Of the Su...mentioning

confidence: 98%

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A Study on the Train-Induced Vibration Responses of Heavy Haul Railway Subgrade in Seasonally Frozen Regions Using Field Experiments

et al. 2022

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The dynamic response resulting from heavy haul train leads to the deterioration of the railway subgrade, especially those built in seasonally frozen regions. In this work, a typical heavy haul railway section in a seasonally frozen region is monitored on-site. The time domain and the frequency domain analysis of the subgrade vertical vibration acceleration, dynamic speed, and displacement during the non-frozen period and the frozen period are investigated. The results show that the vibration response of the subgrade is affected by various factors, including the train type, locomotive, traveling speed, train formation, heavy load, and the prevalent season. Further, it is observed that the maximum and average vertical acceleration of the subgrade, the vibration speed, and the dynamic displacement increase during the frozen period. However, the main frequency of the natural vibration remains significantly higher than that before freezing. Moreover, the frozen soil has a significant amplification effect both on the acceleration and the attenuation rate. Similarly, the subgrade’s vibration mode has a low frequency and high amplitude during the freezing period, and the dynamic response characteristics become increasingly apparent as the axle load increases.

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Section: Attenuation Law Of Vibration Response Acceleration Of the Su...mentioning

confidence: 98%

“…Thereafter, the acceleration time-history data are filtered and then integrated to obtain the vibration speed time-history curve. Similarly, the time history of speed is filtered and integrated to obtain the dynamic displacement time-history curve [25].…”

Section: Response Features Of Dynamic Speed and Dynamic Displacement ...mentioning

confidence: 99%

A Study on the Train-Induced Vibration Responses of Heavy Haul Railway Subgrade in Seasonally Frozen Regions Using Field Experiments

et al. 2022

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“…Xia [20] studied the vibration and environmental noise of surrounding buildings caused by traffic load. Ling et al [21][22][23] conducted field monitoring of the vibration acceleration of a railway subgrade and analyzed the amplitudefrequency characteristics of acceleration in a frozen region.…”

Section: Introductionmentioning

confidence: 99%

Acceleration Frequency Characteristics of the Freight-Train-Induced Vibration of the Beijing-Harbin Railway Subgrade

Zhao

Ling

Wang

et al. 2020

Shock and Vibration

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The vibration acceleration during a freezing period was monitored in the Beijing-Harbin railway subgrade, and its frequency characteristics were studied. The results show the following. (1) The vibration acceleration frequency of the railway subgrade was divided into three main bands: the first frequency band is caused by the vehicle wheelbase, the second frequency band is caused by the sleeper spacing, and the third frequency band is mainly affected by the track irregularity spectrum and site structure. (2) The fitted dominant frequency, as can be seen from the monitored results, is in good agreement with the calculated value from the vibration frequency calculation formulas. (3) From the monitoring, it can be seen that train type, traveling speed, and train formation have a significant influence on the dominant frequencies of the first and second bands. Train formation, load, and distance from the track have a great influence on the amplitude of each frequency band.

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“…In addition, field tests can reflect the vibrations objectively and comprehensively. The vibration acceleration amplitudes, dynamic soil pressure, vibration spectrum curves, and ground vibration responses of the subgrade were investigated using field measurements (Chen et al., 2013; Connolly et al., 2015; Wang et al., 2015).…”

Section: Introductionmentioning

confidence: 99%

Propagation characteristics of vibrations induced by heavy-haul trains in a loess area of the North China Plains

Dong

Yang

2018

Journal of Vibration and Control

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To study heavy train-related vibration, this paper examines the world's largest heavy-freight railway – the Daqin Railway – to study the impacts of the seasonally frozen soil layer on vibrational acceleration. With increasing axle weight, the peak and mean values of the acceleration increased. Vibration acceleration attenuated the most from the shoulder to the embankment footing (51%–71%), while the vibrations at 70 m were attenuated by more than 90%. Certain measures must be taken by those living within 70 m of the railway shoulder. In addition, the acceleration peak caused by trains running in parallel after meeting amplified the vibration by 10%–39%. Moreover, the overall vibrations attenuate with increasing distance, whereas the local vibrations fluctuate. During the freezing period, the acceleration is 13%–26% greater than that of the unfrozen period. The vibration acceleration spectrum is comparatively wider, and is dominated by high-frequency components. Finally, using a three-dimensional model verified by field measurements, the vibrational features were analyzed at different embankment and foundation depths.

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Dominant frequencies of train-induced vibrations in a seasonally frozen region

Cited by 11 publications

References 20 publications

A Study on the Train-Induced Vibration Responses of Heavy Haul Railway Subgrade in Seasonally Frozen Regions Using Field Experiments

A Study on the Train-Induced Vibration Responses of Heavy Haul Railway Subgrade in Seasonally Frozen Regions Using Field Experiments

Acceleration Frequency Characteristics of the Freight-Train-Induced Vibration of the Beijing-Harbin Railway Subgrade

Propagation characteristics of vibrations induced by heavy-haul trains in a loess area of the North China Plains

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