Effects of track irregularities on environmental vibration caused by underground railway

Xu, Qiang; Ou, Xi; Au, Ftk; Lou, Ping; Xiao, Zucai

doi:10.1016/j.euromechsol.2016.04.005

Cited by 45 publications

(25 citation statements)

References 28 publications

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“…Rail transit-induced vibrations affect old architectures and any precise instruments in institutions, hospitals and universities along the rail transit lines [8]. Herein, how to decrease urban rail transit vibrations is an urgent problem to be solved at the current stage, which includes the vibration analysis from the ground and tunnel [9,10,11,12,13,14,15,16,17,18,19], rail [20], passing vehicles [21], bridges [22] and so on. In terms of ground and tunnel vibration analysis, in [9], a model for a twin tunnel embedded in a homogeneous, elastic full space is proposed to investigate the interference between tunnels in the propagation of ground-borne vibrations from an underground railway.…”

Section: Introductionmentioning

confidence: 99%

“…In [19], field data is utilized to anticipate the ground vibration amplitudes resulting from urban railway traffic quantitatively and qualitatively. In terms of the rails, the effects of the track irregularities on environmental vibration are investigated in [20]. The vibration of a train-bridge under track irregularities and traveling seismic waves is investigated using a train-slab-track-bridge interaction model in [21].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Vibration Mitigation Effect Investigation of a New Slab Track Plate Design

Liu

Wang

Zhou

et al. 2019

Sensors

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This study proposed a novel vibration mitigation slab track plate design to mitigate the vibration induced in urban rail transit operations. The optimal recipe for the newly designed slab track plate is obtained by a series of laboratory tests, and both newly designed vibration mitigation slab track plates and normal slab track plates are fabricated and hereinafter tested. The newly designed slab track plate was examined with a series of laboratory tests in comparison with the normal slab track plate. The PolyMAX method is then adopted for extracting the modal properties, including resonant frequencies, and damping ratios are also determined for both the designed slab and normal slab track plates. A vibration mitigation level (Ls) is defined to address the vibration mitigation performance taking the acceleration response of the normal slab track plate as reference. The newly designed slab track plate demonstrated better dynamic and damping characteristics in comparison with the normal slab track plate. Under the same excitation force, the newly designed slab track plate can mitigate 8.9 dB on average in the frequency range [20, 400] Hz, expressing the feasibility of effective vibration mitigation capacity.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Vibration Mitigation Effect Investigation of a New Slab Track Plate Design

Liu

Wang

Zhou

et al. 2019

Sensors

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“…In the previous decades, the problem of metro traininduced environmental vibration has garnered extensive attention. [1][2][3][4] Due to the acceleration of urban construction, shortage of urban land, and the densification of metro networks, it is difficult for the turnout zones of metro lines to avoid vibration-sensitive locations. The turnout is one of the weakest links in a railway line due to rail discontinuities and special crossing structures.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the vibration characteristics of the floating slab track in metro turnout zones

Jiang

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part F:

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In railway turnout areas, vertical and horizontal structure irregularities, including geometry and stiffness, result in vibration amplification during the passage of trains. These vibrations can then spread to the surrounding environment. A steel spring floating slab track may be used to control such vibrations, especially in metro-type urban railways. An experimental study was conducted to investigate the vibration-mitigating effects of the floating slab track in turnout areas, and the results were compared with the performance of a regular slab track. Four test cases (consisting of six test sections) were selected: a floating slab track in the turnout zone (consisting of a switch rail section and a nose rail section), a floating slab track in the plain line, a slab track in the turnout zone (consisting of a switch rail section and a nose rail section), and a slab track in the plain line. The vibration characteristics of the floating slab track in the plain line and in the turnout were calculated to explain the test results. The test results indicate that when trains pass across the floating slab track in the turnout zone, the vertical vibration response is close to the horizontal response on the switch rail sections. The use of floating slab track can effectively reduce this vertical vibration. However, the vertical vibration response is much larger than the horizontal response on the nose rail sections of the turnout zone. When the floating slab track is used in these turnout zones, the vertical vibration of the rail decreases while the horizontal vibration increases. Compared to sections using the regular slab track in the turnout zone, the vibration of the floating slab track segments in the turnout zone is shown to be exacerbated, although the vibration level at the adjacent tunnel wall is effectively reduced.

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“…[1][2][3][4] Because the coupling vibrations of train-bridge/train-track system are complex, many researchers have focused on the simulation of the vibrations sources and have studied their frequency characteristics. Xu et al 5 established a mixed 2D and 3D model to simulate the dynamic track-tunnel-soil interaction in an underground railway. Zhou et al 6 investigated the dominant frequency-dependent attenuation mechanism of blast-induced vibration.…”

Section: Introductionmentioning

confidence: 99%

Model for predicting the vibrations of historical timber buildings due to traffic loads and its experimental validation

Zhang

2019

Journal of Low Frequency Noise, Vibration and Active Control

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This study established the transfer laws of vibration waves in a linear system under simple harmonic loading. Then, a method based on multipoint delivery in the frequency domain was proposed to predict the vibrations of historical timber buildings induced by traffic loads, in which the transfer function between two delivery points of different single frequencies is obtained. Finally, the vibration responses of the Feiyun pavilion induced by traffic loads were predicted and compared with experimental field test results. The results indicate that the predicted vibration responses and experimental field tests at the measurement point in the Feiyun pavilion correspond well in the concerned frequency bands and that the proposed prediction method can be used to predict the structural vibration responses under the influence of complex traffic loads.

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Effects of track irregularities on environmental vibration caused by underground railway

Cited by 45 publications

References 28 publications

Vibration Mitigation Effect Investigation of a New Slab Track Plate Design

Vibration Mitigation Effect Investigation of a New Slab Track Plate Design

Experimental study of the vibration characteristics of the floating slab track in metro turnout zones

Model for predicting the vibrations of historical timber buildings due to traffic loads and its experimental validation

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